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1potential rival
潜在的对手
讲解形容词 potential 表“潜在的”，后接名词，常修饰 rival、customer、risk 等
搭配potential rival, potential customer, potential risk
近义possible competitor, likely opponent
派生potentially (adv.) 潜在地
The company keeps a close eye on every potential rival in the Asian market.
该公司密切关注亚洲市场上的每一个潜在对手。
2full rate
全价；全速率
讲解full rate 指“全价、足额费率”，与折扣价相对；也用于描述设备全速运转
搭配pay the full rate, charge the full rate, at the full rate
近义full price, standard rate
反义discount rate, reduced rate
Students who enrol late usually have to pay the full rate for the course.
晚报名的学生通常得按全价支付课程费用。
3external mediator
外部调解员
讲解external 强调“来自外部的、第三方的”，mediator 指调解人，常用于商务与法律语境
搭配external mediator, act as a mediator, bring in a mediator
近义third-party negotiator, impartial arbitrator
派生mediate (v.) 调解, mediation (n.) 调解
When talks broke down, both sides invited an external mediator to settle the dispute.
谈判破裂后，双方请来一位外部调解员来解决争端。
4vertical line
垂直线
讲解vertical 意为“垂直的”，与 horizontal（水平的）相对，常用于图表、几何描述
搭配vertical line, vertical axis, vertical drop
近义upright line, perpendicular line
反义horizontal line
Draw a vertical line down the middle of the page to divide the two columns.
在页面中间画一条垂直线，把两栏分开。
5cubic centimetre
立方厘米
讲解cubic 表“立方的”，centimetre 是英式拼写，美式写作 centimeter；常用于测量体积
搭配cubic centimetre, cubic metre, per cubic centimetre
近义cc (缩写), cubic centimeter (美式)
The box has a volume of about one cubic centimetre, small enough to hold in your hand.
这个盒子的体积约为一立方厘米，小到可以握在手里。
6family tree
家谱；家谱图
讲解family tree 既可指“家谱图”，也可引申指家族血统、演化谱系
搭配trace one's family tree, draw a family tree, go back in the family tree
近义genealogy, lineage, ancestry
Tracing her family tree back five generations took her nearly three years of research.
把她的家谱向上追溯五代，花了将近三年的研究时间。
7be mindful of
注意/留心…
用 后接名词或动名词，表示对潜在风险或细节保持警觉，常用于建议与提醒语境。
记忆mind（心思）+ ful（充满）→ 心里装着某事，自然就是“留心”。
搭配be mindful of sth；be mindful that...；be mindful of doing sth
近义be aware of；be conscious of；pay attention to
反义ignore；overlook
派生mindfulness（正念；留心）
Travellers should be mindful of local customs when visiting religious sites abroad.
游客在参观国外宗教场所时应注意当地习俗。
8market intelligence
市场情报
用 指经收集分析得到的商业信息，属不可数名词，常见于商务与管理类阅读。
记忆market（市场）+ intelligence（情报），即“关于市场的情报”。
搭配gather market intelligence；market intelligence report；competitive intelligence
近义business information；market research data
派生intelligence gathering（情报收集）
Companies rely on market intelligence to predict shifting consumer demand before rivals do.
企业依靠市场情报在竞争对手之前预测消费者需求的变化。
9natural ecozones
自然生态地带
用 指具有相似气候与生物群落的较大地理区域，学术色彩较强，多用于环境类写作。
记忆eco（生态）+ zone（地带），即“生态地带”，natural 强调其原生性。
搭配protect natural ecozones；tropical ecozones；fragile ecozones
近义ecological zones；biogeographic regions
派生ecosystem（生态系统）
Protecting natural ecozones helps preserve the biodiversity on which local communities depend.
保护自然生态地带有助于维护当地社区所依赖的生物多样性。
10realistic situation
现实情况
用 强调与理想或理论相对的实际情况，可作主语或宾语，写作中常与 oversimplify、reflect 等动词连用。
记忆real（真实）+ istic（形容词后缀）+ situation（情况）。
搭配reflect the realistic situation；in a realistic situation；the realistic situation of
近义actual circumstances；the real picture
反义idealised scenario
Textbooks often oversimplify the realistic situation that graduates face in a tight job market.
教科书往往把毕业生在紧张就业市场中面临的现实情况过于简单化。
11individual property
个人品质
用 指某人内在的性格特质，此处 property 意为“特性”，非“财产”，注意与 personal property（个人财产）区分。
记忆property 除“财产”外还有“特性、属性”义，individual property 即“个人具有的特性”。
搭配a valuable individual property；possess an individual property
近义personal trait；personal quality；characteristic
反义external factor
Perseverance is an individual property that employers value as much as technical skills.
毅力是一种个人品质，雇主对它的重视不亚于技术技能。
12in the offing
即将发生的
用 多作表语，指某事即将发生但尚未发生，语体偏正式，适合写作任务二预测类表达。
记忆源自航海用语，offing 指远处海面，船从远处驶来即“即将到来”。
搭配be in the offing；reforms in the offing
近义imminent；on the horizon；about to happen
反义unlikely to happen
Major reforms in higher education appear to be in the offing across several developing countries.
若干发展中国家的高等教育改革似乎即将发生。
13inhospitable environment
不适宜居住的环境
讲解inhospitable 指环境恶劣、不适合人类或生物居住，常与 environment、climate、region 搭配，多用于地理、环保类阅读写作。
搭配inhospitable climate / inhospitable terrain / an inhospitable desert
近义hostile environment / unforgiving conditions / barren land
反义hospitable environment / welcoming climate
Few animals can survive in such an inhospitable environment as the frozen Arctic tundra.
很少有动物能在像冰冻的北极苔原这样不适宜居住的环境中生存。
14household waste
生活垃圾
讲解household 指家庭的、家用的，household waste 强调来自家庭的日常垃圾，与 industrial waste、commercial waste 相对。
搭配dispose of household waste / household waste recycling / reduce household waste
近义domestic refuse / residential garbage
反义industrial waste / commercial waste
派生householder（房主，住户）
Local councils encourage residents to recycle household waste instead of sending it to landfill.
地方议会鼓励居民回收生活垃圾，而不是将其送往垃圾填埋场。
15postal address
邮政地址
讲解postal 意为邮政的，postal address 指可用于投递信件的地址，区别于 email address 或 web address。
搭配full postal address / current postal address / postal code
近义mailing address / correspondence address
派生postage（邮资）/ postcode（邮政编码）
Please write your full postal address clearly on the application form before posting it.
寄出前请清楚地在申请表上写下你的完整邮政地址。
16subsistence purpose
生存目的
讲解subsistence 指勉强维持生存，subsistence purpose 强调仅为自给自足，常见于农业、经济类话题。
搭配subsistence farming / subsistence level / subsistence economy
近义survival purpose / self-sufficiency
派生subsist（维持生存）
Many rural families still farm only for subsistence purposes rather than to sell their crops.
许多农村家庭务农仍只为维持生计，而非出售农作物。
17reference material
参考材料
讲解reference material 指写作或研究时参考的资料，常用复数 reference materials，与 source material 意思接近。
搭配collect reference materials / reference materials on / a list of reference materials
近义source material / background reading
派生reference（参考，引用）
Students should cite all reference materials they consulted when writing their research papers.
学生在撰写研究论文时应引用所有查阅过的参考材料。
18chemical analysis
化学分析
讲解chemical analysis 指用化学方法测定物质成分，常用于科研、检测、环境类语境。
搭配conduct / perform a chemical analysis / chemical analysis of
近义chemical testing / laboratory analysis
派生analyse（分析）/ analyst（分析员）
Scientists carried out a detailed chemical analysis of the water to detect any pollution.
科学家对水进行了详细的化学分析，以检测是否存在污染。
19long for
期待，渴望
讲解long for 后接名词或代词，表示对某事物的强烈渴望，语气比 want 更文学化。
搭配long for freedom / long for a change / long for the past
近义yearn for, crave, desire
反义dread, loathe
派生longing (n. 渴望)
After years in the city, she began to long for the peace of her hometown.
在城市生活多年后，她开始渴望家乡的宁静。
20sculpture collection
雕塑收藏
讲解sculpture collection 指系统收藏的雕塑作品，常用于介绍博物馆或私人藏品。
搭配a private sculpture collection / a rich sculpture collection / donate a collection
近义art collection, statue gallery
派生sculptor (n. 雕塑家), sculptural (adj. 雕塑的)
The museum's sculpture collection attracts thousands of visitors every year.
这家博物馆的雕塑收藏每年吸引成千上万的参观者。
21affluent middle-class
富裕的中产阶级
讲解affluent 意为富裕的，比 rich 更正式，affluent middle-class 常作定语修饰 families 或 consumers。
搭配affluent society / affluent consumers / the affluent middle class
近义wealthy, well-off, prosperous
反义impoverished, deprived
派生affluence (n. 富裕)
The new shopping district mainly targets the affluent middle-class families nearby.
这个新商业区主要面向附近富裕的中产阶级家庭。
22split off (
从团体中)分裂出去
讲解split off 表示从较大的团体中分离，常与 from 连用，也可用于物理上的断裂脱落。
搭配split off from / split off into a new group
近义break away, secede, branch off
反义merge, unite, join
派生split-up (n. 分裂)
A small group of members decided to split off and form their own club.
一小群成员决定分裂出去，组建自己的俱乐部。
23motor circuit
发动机电路
讲解motor circuit 指控制电动机运行的电路系统，属技术类词汇，常见于工程或维修语境。
搭配a faulty motor circuit / repair the motor circuit / motor circuit board
近义electrical circuit, wiring system
派生circuitry (n. 电路系统)
A faulty motor circuit can cause the machine to overheat within minutes.
有故障的发动机电路会使机器在几分钟内过热。
24theoretical discovery
理论上的发现
讲解theoretical discovery 指尚未经实验验证的理论层面的发现，与 practical application 相对。
搭配a theoretical discovery / make a discovery / theoretical framework
近义conceptual finding, abstract breakthrough
反义practical invention, empirical result
派生theory (n. 理论), theorist (n. 理论家)
This theoretical discovery later paved the way for major advances in physics.
这一理论上的发现后来为物理学的重大进步铺平了道路。
25the tip of the iceberg
冰山一角
讲解常用于说明问题、现象只显露一小部分，真实情况更严重，写作中引出深层问题
搭配the tip of the iceberg of，just the tip of the iceberg
近义a small part of the whole, the visible fraction
派生iceberg (n.) 冰山
The reported cases are just the tip of the iceberg; many more remain hidden.
被报道的案例只是冰山一角，还有更多仍隐藏着。
26superb residence
华丽的住所
讲解superb 强调极好、卓越，residence 指正式或气派的住所，多用于描述高档住宅
搭配a superb residence，a private residence，an official residence
近义magnificent dwelling, splendid home
反义humble abode, modest lodging
They spent their holiday in a superb residence overlooking the calm blue sea.
他们在一座俯瞰平静蓝色大海的华丽住所里度假。
27distinguished medical historian
杰出的医学史学家
讲解distinguished 指因成就而闻名、受人尊敬，常用于介绍学者、专家身份
搭配a distinguished scholar，a distinguished career，be distinguished for
近义eminent, renowned
反义obscure, unknown
派生distinguish (v.) 区分；使杰出
A distinguished medical historian delivered a lecture on ancient healing practices.
一位杰出的医学史学家就古代治疗方法做了讲座。
28suggestopedic approach
暗示教学法
讲解指通过暗示、放松和积极氛围促进学习的教学法，多用于教育类阅读或写作
搭配the suggestopedic approach to teaching，adopt a suggestopedic approach
近义suggestive teaching method, accelerated learning approach
派生suggestopedia (n.) 暗示教学法
The suggestopedic approach uses relaxation and music to help students absorb new vocabulary.
暗示教学法利用放松和音乐帮助学生吸收新词汇。
29temporary work
临时工作
讲解指有期限、非长期的工作，常与 permanent work 对比，用于就业话题讨论
搭配take temporary work，temporary work contract，do temporary work
近义casual employment, short-term job
反义permanent employment, long-term position
Many graduates accept temporary work while searching for a permanent position.
许多毕业生在寻找固定职位期间接受临时工作。
30camping equipment
露营装备
讲解equipment 为不可数名词，不能说 equipments，计量时用 piece of equipment
搭配camping equipment，a piece of equipment，buy outdoor equipment
近义camping gear, outdoor kit
派生equip (v.) 装备；equipped (adj.) 配备的
Before the trip, we checked all our camping equipment, including the tent and stove.
出发前，我们检查了所有露营装备，包括帐篷和炉子。
31get the better of (
在比赛、打斗或争论中)战胜，打败
讲解表示在竞争或冲突中最终胜过对方，强调经过努力取得优势
搭配get the better of someone, get the better of one's nerves
近义overcome, defeat, prevail over
反义yield to, be defeated by
After a long struggle, she finally got the better of her opponent in the final round.
经过长时间的较量，她终于在最后一轮中战胜了对手。
32gather data
收集数据
讲解常用于学术和科研语境，指系统性地收集信息或数据
搭配gather data on, gather data from, collect and gather data
近义collect data, accumulate data
反义disperse data, scatter data
Researchers spent months gathering data on the eating habits of local teenagers.
研究人员花了数月时间收集当地青少年饮食习惯的数据。
33marine biologist
海洋生物学家
讲解指专门研究海洋生物及其生态环境的科学家，常用于雅思阅读和听力
搭配marine biologist studying, work as a marine biologist
近义oceanographer, aquatic scientist
派生marine biology, marine ecosystem
The marine biologist spent years studying coral reefs in the Pacific Ocean.
这位海洋生物学家花了数年时间研究太平洋的珊瑚礁。
34card index
卡片目录(或索引)
讲解指用卡片按字母或主题排列的索引系统，旧时图书馆常用
搭配card index system, maintain a card index
近义card catalogue, filing system
Before computers, librarians relied on a card index to locate every book.
在计算机出现之前，图书管理员依靠卡片索引来查找每一本书。
35personal discovery
个人发现
讲解指个人在经历中获得的自我认识或新发现，常用于雅思口语话题
搭配a journey of personal discovery, a sense of personal discovery
近义self-discovery, self-realisation
派生discover personally, self-discovered
Travelling alone gave her a sense of personal discovery that no tour could offer.
独自旅行给了她一种任何跟团游都无法提供的个人发现感。
36combat obesity
对抗肥胖
讲解常用于健康类雅思写作话题，指采取措施对抗肥胖问题
搭配combat obesity effectively, measures to combat obesity
近义fight obesity, tackle obesity
反义promote obesity, worsen obesity
Governments should take urgent measures to combat obesity among young children.
政府应采取紧急措施来对抗儿童肥胖问题。
37damaged ecosystem
受损的生态系统
讲解环保类高频搭配，常与 restore、protect、conserve 等动词连用，用于雅思写作环境话题。
搭配damaged ecosystem, restore an ecosystem, fragile ecosystem, marine ecosystem
近义degraded habitat, impaired environment, harmed ecology
反义healthy ecosystem, intact ecosystem
派生ecosystem services, ecosystem balance
Restoring a damaged ecosystem often takes decades of careful and costly human effort.
修复受损的生态系统往往需要数十年谨慎而昂贵的人力投入。
38genetic modification
基因改造
讲解科技与农业类高频名词短语，常与 of crops/animals 搭配，讨论利弊时非常好用。
搭配genetic modification of crops, oppose genetic modification, genetic modification technology
近义genetic engineering, gene editing
派生genetically modified (GM), modify genes
Many scientists argue that genetic modification of crops could help solve global food shortages.
许多科学家认为，农作物的基因改造可能有助于解决全球粮食短缺问题。
39enterprise award
企业奖
讲解商业类搭配，指颁发给企业的奖项，常与 win、receive、be nominated for 连用。
搭配win an enterprise award, receive an enterprise award, annual enterprise award
近义business award, corporate prize
派生enterprise, entrepreneurial, award-winning
The small firm won a national enterprise award for its innovative and sustainable design.
这家小公司因其创新且可持续的设计赢得了全国企业奖。
40cause disruption
造成混乱
讲解常与 to 连用，说明被打乱的对象，如 transport、services、daily life，写作中很实用。
搭配cause disruption to, serious disruption, widespread disruption
近义create chaos, cause disturbance, disrupt
反义restore order, run smoothly
Heavy snowfall can cause disruption to transport networks across the entire region.
大雪可能对整个地区的交通网络造成混乱。
41meteorological instrument
气象测量工具
讲解科技/环境类名词短语，meteorological 意为“气象的”，常修饰 instrument、data、station。
搭配meteorological instrument, meteorological data, meteorological station
近义weather instrument, weather-monitoring device
派生meteorology, meteorologist, meteorological
Accurate weather forecasts depend heavily on reliable meteorological instruments placed across the country.
准确的天气预报在很大程度上依赖于遍布全国的可靠气象测量工具。
42make a booking
预订
讲解旅游类高频短语，比 book 更正式，常与 in advance、online、for 连用。
搭配make a booking online, make a booking in advance, make a booking for two
近义reserve, book in advance, place a reservation
反义cancel a booking
派生booking, book (v.), booked
Travellers are advised to make a booking well in advance during the peak holiday season.
建议旅客在假期高峰期间提前很久预订。
43social situation
社会境况
讲解指人际交往中的具体场合或处境，常与 awkward、difficult、unfamiliar 等形容词搭配使用。
搭配social situation awareness、handle a social situation、in a social situation
近义social context、social setting、social circumstance
派生socialize、socially
Many students feel awkward in an unfamiliar social situation at first.
许多学生在陌生的社会境况中起初会感到不自在。
44contagious cancer
传染性恶性肿瘤
讲解指可在动物个体间传播的肿瘤，如袋獾面部肿瘤病，属生物学、医学类阅读高频表达。
搭配spread a contagious cancer、face a contagious cancer、a form of contagious cancer
近义transmissible tumour、infectious cancer
派生contagion、contagiousness
Tasmanian devils are threatened by a rare contagious cancer spread through bites.
袋獾受到一种通过咬伤传播的罕见传染性恶性肿瘤的威胁。
45pituitary gland
脑垂体腺
讲解位于大脑底部的小型内分泌腺，常出现在生理、健康类文章中，与 hormone、growth 等词同现。
搭配pituitary gland function、the pituitary gland secretes、a tumour on the pituitary gland
近义hypophysis
派生pituitary（形容词）
The pituitary gland releases hormones that control growth and other body functions.
脑垂体腺释放控制生长及其他身体功能的激素。
46agricultural productivity
农业生产力
讲解指单位投入下农业产出的效率，常用于经济、环境类写作，可与 improve、boost、decline 等动词搭配。
搭配improve agricultural productivity、a rise in agricultural productivity、low agricultural productivity
近义farm output、farming efficiency
反义agricultural decline
派生productive、productively
New irrigation methods have greatly raised agricultural productivity in dry regions.
新的灌溉方法大大提高了干旱地区的农业生产力。
47giant clam
巨型蛤蚌
讲解指珊瑚礁中体型巨大的双壳贝类，常见于海洋生态、自然类阅读，注意 clam 可数。
搭配a giant clam shell、the giant clam species、dive among giant clams
近义huge shellfish、large bivalve
派生clam（名词/动词）
The giant clam can grow over a metre long and live for a century.
巨型蛤蚌可以长到一米多长，并存活一个世纪。
48confront with
遭遇；面对
讲解表示遭遇、面对困难或问题；注意标准用法为 confront sth 或 be confronted with sth，confront with 多用于被动。
搭配be confronted with a problem、confront a challenge、confront difficulties
近义face、encounter、be faced with
反义avoid、evade
派生confrontation、confrontational
Graduates often confront with fierce competition when entering the job market.
毕业生进入就业市场时常常遭遇激烈竞争。
49nickel sulphide impurity
硫化镍杂质
讲解专业术语，常见于材料科学与工程类阅读，指玻璃中混入的硫化镍微粒
搭配nickel sulphide inclusion; trace impurity; cause fracture
近义nickel sulfide contaminant; foreign particle
派生impure (adj.); purify (v.); purity (n.)
Engineers found a nickel sulphide impurity in the glass panel, which caused it to shatter unexpectedly.
工程师在玻璃板中发现了一种硫化镍杂质，导致其意外碎裂。
50come across
偶然碰到
讲解强调偶然性，后接名词或代词；不可用于被动语态，也不接 that 从句
搭配come across an idea; come across as; come across well
近义run into; stumble upon; chance upon
派生come across as (给人…印象)
While travelling through rural Vietnam, I came across a tiny village famous for its handmade silk.
在越南乡村旅行时，我偶然发现了一个以手工丝绸闻名的小村庄。
51education department
教育部
讲解指政府或机构中负责教育事务的部门，写作中常作主语引出政策类话题
搭配local education department; head of the education department
近义ministry of education; education authority
派生departmental (adj.); department store (n.)
The education department announced new funding to improve digital learning in remote schools.
教育部门宣布了新的拨款，用于改善偏远学校的数字化学习。
52town council
市议会
讲解指管理城镇事务的地方议会，常用于城市治理、环保类写作话题
搭配local council; council member; council meeting
近义municipal authority; local government
派生councillor (n.); councilman (n.)
The town council voted to ban cars from the historic centre to reduce air pollution.
市议会投票决定禁止汽车进入历史中心，以减少空气污染。
53prefrontal cortex
前额脑皮层
讲解大脑负责高级认知功能的区域，常见于心理学与神经科学类阅读
搭配prefrontal cortex activity; damage to the prefrontal cortex
近义frontal lobe; forebrain region
派生cortical (adj.); cortex (n.)
The prefrontal cortex plays a key role in planning, decision-making and controlling impulses.
前额脑皮层在计划、决策和控制冲动方面起着关键作用。
54in excess of
超过
讲解正式用语，后接具体数字，多用于学术或商务写作，语气比 more than 更正式
搭配in excess of 100; far in excess of; well in excess of
近义more than; over; exceeding
反义less than; below
派生excessive (adj.); excess (n.)
The company's annual profits were in excess of five million dollars, far above expectations.
该公司年利润超过五百万美元，远超预期。
55cut off
切断，阻隔
讲解既可指物理切断（水电、道路），也可指人际隔绝；常用被动 be cut off from
搭配cut off the supply, cut off contact, be cut off from
近义disconnect, isolate, sever
反义connect, link, restore
派生cutoff (n. 截止点；中断)
Heavy snowfall cut off several remote villages from the outside world for a week.
大雪使几个偏远村庄与外界隔绝了一周。
56ultimate goal
终极目标
讲解用于雅思写作结尾或举例，强调最终追求；ultimate 含「最高、不可超越」之意
搭配achieve/reach the ultimate goal, the ultimate goal of
近义final objective, ultimate aim, end goal
反义starting point, first step
派生ultimately (adv. 最终)
For most athletes, winning an Olympic medal is the ultimate goal of their career.
对大多数运动员来说，赢得奥运奖牌是职业生涯的终极目标。
57permanent job
固定工作
讲解与 temporary/part-time job 对比，常用于讨论就业稳定性话题
搭配land/find a permanent job, a permanent position
近义stable employment, long-term job
反义temporary job, casual work
派生permanence (n. 永久性), permanently (adv. 永久地)
Many graduates prefer a permanent job with stable income to a series of short contracts.
许多毕业生更青睐收入稳定的固定工作，而非一连串短期合同。
58on the brink of
处于边缘；濒临
讲解后接名词，表「即将发生（多指坏事）」；比 about to 更书面，适合写作
搭配on the brink of collapse, on the brink of extinction, on the verge of
近义on the verge of, on the edge of
反义far from, nowhere near
派生brink (n. 边缘)
The company was on the brink of bankruptcy before a foreign investor rescued it.
这家公司在一位外国投资者出手相救之前濒临破产。
59cautionary message
警示性内容
讲解cautionary 意为「劝诫性的」，常与 tale/message 搭配，用于环保、健康类话题
搭配a cautionary tale, send a cautionary message
近义warning, admonitory, advisory
派生caution (n./v. 谨慎；警告), cautious (adj. 谨慎的)
The documentary ends with a cautionary message about the dangers of overfishing.
这部纪录片以一则关于过度捕捞危害的警示信息收尾。
60energy-saving appliance
节能电器
讲解appliance 指家用电器，比 machine 更正式；energy-saving 为合成形容词，作前置定语
搭配energy-saving light bulbs, household appliances, energy-efficient
近义energy-efficient device, eco-friendly appliance
反义energy-wasting
派生apply (v. 应用), appliance (n. 器具)
Installing energy-saving appliances can significantly reduce a household's electricity bills.
安装节能电器能大幅降低家庭的电费。