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1body mass index
体重指数
讲解常用于健康、医学类雅思阅读与写作，指用身高体重计算胖瘦的指标
搭配body mass index (BMI), calculate one's body mass index, a high body mass index
近义BMI, weight-to-height ratio
派生BMI (abbreviation)
Doctors use body mass index to assess whether a patient's weight poses health risks.
医生使用体重指数来评估患者的体重是否会带来健康风险。
2molecular mechanism
分子机制
讲解学术写作高频，指在分子层面起作用的过程或原理，常与 reveal/understand 搭配
搭配reveal a molecular mechanism, underlying molecular mechanism, at the molecular level
近义molecular process, biochemical pathway
派生mechanism (n.), mechanistic (adj.)
Scientists are still uncovering the molecular mechanism behind this rare genetic disorder.
科学家仍在揭示这种罕见遗传病背后的分子机制。
3enrolment fee
报名费
讲解教育、留学类话题常用，英式拼写 enrolment，美式为 enrollment
搭配pay the enrolment fee, a non-refundable enrolment fee, cover the enrolment fee
近义registration fee, admission fee
派生enrol (v.), enrolment (n.), enrollee (n.)
The enrolment fee for the online course is quite reasonable compared with campus programmes.
与校园课程相比，这门在线课程的报名费相当合理。
4extraordinary polymath
非凡的博学者
讲解用于描述人物类雅思写作，polymath 指涉猎多领域且造诣深厚的人
搭配a true polymath, a Renaissance polymath, a gifted polymath
近义genius, Renaissance man, versatile scholar
派生polymathy (n.), polymathic (adj.)
Leonardo da Vinci is often described as an extraordinary polymath who mastered art and science.
列奥纳多·达·芬奇常被描述为一位精通艺术与科学的非凡博学者。
5optical industry
光学工业
讲解科技与产业类话题，指制造镜片、光纤等光学产品的行业
搭配the optical industry, optical fibre, optical instruments
近义lens manufacturing, photonics sector
派生optics (n.), optical (adj.), optician (n.)
The optical industry has grown rapidly thanks to demand for lenses and fibre-optic devices.
由于对镜片和光纤设备的需求，光学工业发展迅速。
6grinding mill
磨坊
讲解多用于历史、乡村生活类阅读，指把谷物磨成粉的作坊或机器
搭配a water-powered grinding mill, operate a grinding mill, take grain to the mill
近义flour mill, gristmill
派生grind (v.), miller (n.), millstone (n.)
Villagers once carried their grain to the grinding mill beside the river every harvest season.
过去每逢收获季节，村民们都会把谷物送到河边的磨坊。
7keep a record of
记录
讲解后接名词或动名词，常用 keep a record of sth；表示长期、系统地保存信息，学术写作与图表题描述均高频。
记忆联想：keep（保持）+ record（记录），把信息一直留着。
搭配keep a detailed record of, keep a record of progress, keep accurate records
近义keep track of, maintain a record of, document
反义lose track of, disregard
Researchers keep a record of every change in the temperature of the lake.
研究人员记录着湖水温度的每一次变化。
8timber skeleton
木框架
讲解timber 指建筑用木材，英式常用；skeleton 在此指骨架结构，合起来指建筑的木质承重框架，多用于建筑与历史话题。
搭配a timber skeleton frame, exposed timber skeleton, steel and timber skeleton
近义wooden frame, timber framework, wooden structure
派生timber-framed (adj.) 木框架的
The old barn still has its original timber skeleton beneath the new roof.
这座旧谷仓在新屋顶之下仍保留着最初的木框架。
9covered picnic area
有顶棚的野餐区
讲解covered 意为有顶棚遮挡的，常用于描述公园、校园等公共设施；雅思口语描述地点题可用来增添细节。
搭配a covered picnic area, a covered walkway, a covered seating area
近义sheltered picnic spot, roofed picnic zone
反义open-air picnic area, uncovered area
Families gathered at the covered picnic area to escape the midday sun.
一家人聚在有顶棚的野餐区躲避正午的烈日。
10antibiotic resistance
抗生素耐药性
讲解医学与健康类高频术语，常与 spread, develop, combat 等动词搭配；写作中可作公共卫生问题的论据。
搭配the spread of antibiotic resistance, combat antibiotic resistance, develop resistance to antibiotics
近义drug resistance, antimicrobial resistance
派生resistant (adj.) 有耐药性的, resistance (n.) 抵抗力
Overusing antibiotics has accelerated the spread of antibiotic resistance worldwide.
滥用抗生素加速了抗生素耐药性在全球的蔓延。
11geographical location
地理位置
讲解描述地点、城市或产业优势时的常用表达，常与 ideal, strategic, remote 等形容词搭配。
搭配a strategic geographical location, a remote geographical location, due to its geographical location
近义position, situation, site
派生geographically (adv.) 在地理上, geography (n.) 地理
The geographical location of the port makes it ideal for international trade.
该港口的地理位置使其成为国际贸易的理想之选。
12raise sponsorship money
筹集赞助费
讲解raise money 指筹款，sponsorship 指赞助；合起来多用于公益活动、体育赛事等话题，口语 Part 2 事件题适用。
搭配raise sponsorship money for charity, raise funds through sponsorship, seek sponsorship
近义collect donations, raise funds, gather financial support
反义donate money, give funds
The students organised a charity run to raise sponsorship money for the hospital.
学生们组织了一场慈善长跑，为医院筹集赞助费。
13attach to
使依恋；把…贴在，附加
讲解attach to 有三义：情感上“依恋”，物理上“贴/系在”，抽象上“附加、归于”。be attached to 表依恋，attach A to B 表把A附到B上。
搭配be attached to, attach importance to, attach a file to an email
近义cling to, be fond of, fasten to
派生attachment（依恋；附件）, attached（附加的；依恋的）
Many young children become deeply attached to their favourite toys and refuse to part with them.
许多幼儿对最喜爱的玩具产生深深的依恋，不肯与之分离。
14train of thought
思路
讲解固定搭配，指连贯的思绪。常用动词 break / lose / interrupt one's train of thought，也可说 follow a train of thought。
搭配break one's train of thought, lose one's train of thought, follow a train of thought
近义line of thinking, chain of thought
派生无
The sudden noise outside completely broke my train of thought during the exam.
考试时外面突然的噪音彻底打断了我的思路。
15subsequent generations
后代
讲解subsequent 意为“随后的、后来的”，修饰 generations 即“后代、后世”。写作中常与 previous generations 对照使用。
搭配subsequent generations, for subsequent generations, subsequent to
近义later generations, future generations, descendants
反义previous generations, earlier generations
派生subsequently（随后，副词）, subsequent（随后的）
Subsequent generations may never fully understand the sacrifices made by their ancestors.
后代或许永远无法完全理解先辈所做的牺牲。
16prey on
捕食
讲解prey on 本义“捕食”，引申义指“（以弱者）为害、敲诈”。注意 prey 作名词时意为“猎物”，不可数。
搭配prey on small animals, prey on the weak, fall prey to
近义hunt, feed on, live off
派生predator（捕食者）, prey（猎物）
Owls prey on small mammals and birds, hunting mostly under the cover of darkness.
猫头鹰捕食小型哺乳动物和鸟类，大多在夜色掩护下捕猎。
17fixed asset
固定资产
讲解会计与经济类术语，指长期使用、不易变现的资产，如厂房、设备。常与 current asset（流动资产）对照。
搭配fixed assets, acquire fixed assets, tangible fixed assets
近义capital assets, tangible assets
反义current assets, liquid assets
派生asset（资产）, fixed（固定的）
Investing heavily in fixed assets can improve a company's long-term productivity.
大量投资于固定资产可以提高公司的长期生产率。
18insulting nickname
侮辱性的绰号
讲解insulting 为形容词“侮辱性的”，由动词 insult 派生；nickname 指“绰号、昵称”，此处含贬义。
搭配insulting nickname, call sb by a nickname, a cruel nickname
近义derogatory nickname, offensive label
反义affectionate nickname, pet name
派生insult（侮辱）, insulting（侮辱性的）
Calling a classmate by an insulting nickname can cause lasting emotional harm.
用侮辱性的绰号称呼同学可能会造成持久的情感伤害。
19sulphur dioxide
二氧化硫
讲解不可数名词，化学式SO2，常与release/emit/emission连用，环保类阅读高频
搭配sulphur dioxide emissions, release sulphur dioxide, sulphur dioxide levels
近义sulfur dioxide（美式拼写）
派生sulphur（硫）, sulphuric acid（硫酸）
Burning fossil fuels releases sulphur dioxide, which contributes to acid rain.
燃烧化石燃料会释放二氧化硫，从而造成酸雨。
20gear to/towards
调整，使合适
讲解及物动词短语，常用被动be geared to/towards，表示"针对…而设计"，写作教育类好用
搭配be geared to, be geared towards, gear sth to the needs of
近义tailor to, orient towards, adapt to
派生gearing（齿轮传动）
Universities should gear their courses towards the skills that employers actually need.
大学应当使课程面向雇主真正需要的技能。
21personal statement
个人陈述
讲解可数名词，留学申请文书，常与write/draft/craft连用；口语Part2可谈申请经历
搭配write a personal statement, draft a personal statement, a compelling personal statement
近义application essay, statement of purpose
派生statement（陈述，声明）
A strong personal statement can make your application stand out from thousands of others.
一份出色的个人陈述能让你的申请在数千人中脱颖而出。
22in a row
连续地
讲解副词性短语，置于数量之后，表"连续地"，口语写作皆常用
搭配three times in a row, several days in a row, win in a row
近义consecutively, on end, successively
反义intermittently
She has won the regional championship three years in a row.
她连续三年赢得地区冠军。
23sit-down meal
桌餐
讲解可数名词，与自助餐buffet相对，口语谈饮食文化、节日习俗时好用
搭配a formal sit-down meal, enjoy a sit-down meal, a sit-down dinner
近义seated dinner, formal dinner
反义buffet, finger food
Family gatherings in my country usually involve a sit-down meal with many traditional dishes.
在我的国家，家庭聚会通常是一顿有许多传统菜肴的桌餐。
24heightened awareness
敏锐的洞察力
讲解名词短语，heightened为过去分词作定语，表"加强的"，写作谈经历收获好用
搭配raise awareness, a heightened awareness of, develop an awareness of
近义sharpened awareness, increased sensitivity
派生heighten（加强，提高）
Travelling abroad alone gave me a heightened awareness of cultural differences.
独自出国旅行让我对文化差异有了更敏锐的觉察。
25social media
社交媒体
讲解可数不可数两可，泛指时常用零冠词；雅思写作常讨论其对青少年心理健康的影响
搭配social media platform, social media addiction, on social media
近义social networking sites, online platforms
派生social media user
Many teenagers spend hours on social media every day instead of doing outdoor activities.
许多青少年每天花数小时在社交媒体上，而不是进行户外活动。
26full of chlorophyll
充满叶绿素
讲解不可数名词，作表语时用 be full of/rich in；科普类阅读常见，指植物进行光合作用的色素
搭配be rich in chlorophyll, contain chlorophyll
近义green pigment
派生chlorophyllous
The deep green leaves are full of chlorophyll, which helps the plant absorb sunlight.
深绿色的叶子充满叶绿素，这有助于植物吸收阳光。
27antimicrobial compounds
抗菌化合物
讲解可数名词复数，医学与生物类阅读高频；antimicrobial 意为“抗微生物的”，修饰 compounds
搭配natural antimicrobial compounds, contain antimicrobial compounds
近义antibacterial substances
派生antimicrobial (adj.)
Scientists found that certain herbs contain antimicrobial compounds that fight harmful bacteria.
科学家发现某些草药含有能对抗有害细菌的抗菌化合物。
28booming demand
旺盛的需求
讲解经济类写作高频，booming 意为“激增的、繁荣的”，常与 demand/market 搭配
搭配meet the booming demand, booming demand for
近义soaring demand, surging demand
反义declining demand
The booming demand for electric cars has pushed manufacturers to expand production rapidly.
对电动汽车旺盛的需求促使制造商迅速扩大生产。
29chip card
芯片卡
讲解可数名词，指内置微芯片的银行卡；科技与金融类话题常见，与 magnetic strip card 相对
搭配use a chip card, insert a chip card
近义smart card, IC card
派生chip-card reader
For better security, the bank now issues a chip card instead of a traditional magnetic one.
为了更安全，银行现在发行芯片卡而非传统的磁条卡。
30light rail
轻轨
讲解不可数名词短语，指城市轻轨交通；城市规划与交通类写作常用，区别于 subway/metro
搭配light rail line, light rail system, light rail network
近义tram, streetcar
派生light-rail (adj.)
The new light rail line connects the suburbs with the city centre in under twenty minutes.
新的轻轨线路不到二十分钟就把郊区和市中心连接起来。
31hunch over
弓身，弓背
讲解动词短语，后常接 over sth，描述身体前倾弯曲的姿态，多含久坐、疲劳之意
搭配hunch over a desk, hunch over a book, hunch over a screen
近义bend over, stoop, lean forward
派生hunched (adj.) 弓着背的
He hunched over his laptop for hours, ignoring the pain in his aching shoulders.
他弓着身子对着笔记本电脑好几个小时，忽略了酸痛肩膀的疼痛。
32financial circumstances
经济情况
讲解正式表达，常用复数，多指个人或家庭的经济状况，适合写作话题
搭配difficult financial circumstances, improve financial circumstances, family financial circumstances
近义economic situation, financial situation
派生circumstance (n.) 情况，环境
Many students choose part-time jobs because of their difficult financial circumstances.
许多学生因经济情况困难而选择做兼职。
33come along
出现；一起来
讲解多义短语：表『出现、到来』时主语常为机会、事物；表『一起来』时后接 with sb
搭配come along with sb, come along nicely, an opportunity comes along
近义turn up, show up, appear
反义disappear, vanish
A great opportunity came along just when she was about to give up her job hunt.
就在她快要放弃找工作的时候，一个绝佳的机会出现了。
34precious resource
宝贵资源
讲解写作高频搭配，常用于环保、资源类话题，可作主语或表语
搭配a precious resource, protect precious resources, a scarce resource
近义valuable resource, scarce resource
反义abundant resource, cheap resource
Clean drinking water is a precious resource that many people still take for granted.
清洁的饮用水是一种宝贵资源，许多人却仍视之为理所当然。
35realistic expectation
实际的期望
讲解名词短语，多用于建议、心理类话题，常与 set/have 连用
搭配set a realistic expectation, have realistic expectations, manage expectations
近义reasonable expectation, sensible expectation
反义unrealistic expectation, false hope
Setting a realistic expectation before the exam helps reduce unnecessary anxiety.
考试前设定一个实际的期望有助于减少不必要的焦虑。
36video clip
视频片段
讲解可数名词，指从较长视频中截取的片段，常用于教育、媒体类话题
搭配a short video clip, watch a video clip, a clip from a film
近义video segment, footage
派生clip (n.) 片段；夹子
The teacher played a short video clip to make the grammar lesson more engaging.
老师播放了一段短视频片段，让语法课更有吸引力。
37take the lead
带头
讲解动词短语，后接in doing sth，指率先做某事，常用于雅思写作环境、科技等话题。
搭配take the lead in sth/in doing sth; take the lead on an issue
近义take the initiative; spearhead; set an example
反义follow others' lead; lag behind
Developed countries should take the lead in reducing carbon emissions.
发达国家应当带头减少碳排放。
38wash away
冲掉
讲解既可指水流冲走实物，也可喻指冲淡记忆或罪恶感，写作中多用于环境类话题。
搭配wash away soil; wash away memories; be washed away by floods
近义erode; sweep away; carry off
反义deposit; accumulate
Heavy rain can wash away the fertile topsoil on hillside farms.
大雨会冲走山坡农田上肥沃的表层土壤。
39bedridden humans
卧床不起的人
讲解bedridden为形容词，意为长期卧床的，常与patients、elderly等搭配，多用于医疗养老话题。
搭配bedridden patients; bedridden for months; elderly and bedridden
近义confined to bed; housebound
派生bedriddenness（极少用，慎用）
Robots may soon assist bedridden humans with basic daily tasks.
机器人可能很快就能帮助卧床不起的人完成基本日常事务。
40neutral trading policy
中立的贸易政策
讲解neutral指不偏袒任何一方，常修饰policy、stance、attitude，写作中可用于国际关系话题。
搭配remain neutral; a neutral stance on sth; politically neutral
近义impartial; unbiased; non-aligned
反义biased; partisan
A neutral trading policy can help smaller nations avoid trade wars.
中立的贸易政策有助于小国避免贸易战。
41social intelligence
社交智力
讲解指理解并处理人际关系的能力，常与emotional intelligence并列，用于教育、职场类写作。
搭配develop social intelligence; a high level of social intelligence
近义interpersonal skills; emotional intelligence
派生socially intelligent（形容词短语）
Social intelligence helps employees read colleagues' emotions and react appropriately.
社交智力有助于员工读懂同事的情绪并做出恰当反应。
42evergreen tree
常绿乔木
讲解evergreen作形容词指常绿的，也可喻指经久不衰的，如evergreen song；tree可替换为shrub等。
搭配evergreen trees; evergreen forests; an evergreen topic
近义coniferous（针叶的，语境相近）
反义deciduous（落叶的）
Evergreen trees keep their leaves throughout the year, even in cold winters.
常绿乔木终年保持叶子，即使在寒冷的冬天也是如此。
43television programme
电视节目
讲解可数名词，泛指电视节目类别时用 television programmes；具体某档节目用 a television programme。
搭配watch a television programme, a popular television programme, television programme ratings
近义TV show, TV broadcast, television series
派生televise (v. 电视播送), televised (adj. 电视播出的)
Many teenagers spend hours every day watching their favourite television programme instead of doing homework.
许多青少年每天花好几个小时看他们最喜欢的电视节目，而不去做作业。
44enroll in
加入，参加
讲解enroll in 后接课程、学校、项目等；英式拼写 enrol，美式 enroll，过去式 enrolled。
搭配enroll in a course, enroll in a university, enroll at a college
近义sign up for, register for, join
反义drop out of, withdraw from
派生enrollment (n. 注册人数；入学)
Thousands of mature students enroll in evening courses to improve their career prospects.
成千上万的成年学生报名参加夜校课程以提升职业前景。
45vital to/for sth.
对…极重要的，对…必不可少的
讲解vital to 后多接名词或动名词，vital for 后常接名词；vital 不用于比较级，不说 more vital。
搭配be vital to, be vital for, play a vital role in
近义essential to, crucial to, indispensable to
反义unimportant to, irrelevant to
派生vitally (adv. 极其), vitality (n. 活力)
Regular exercise is vital to maintaining both physical and mental health in old age.
经常锻炼对老年人保持身心健康极为重要。
46carbon emission
碳排放
讲解常用复数 carbon emissions；作定语时用单数，如 carbon emission targets。
搭配reduce carbon emissions, cut carbon emissions, carbon emission levels
近义greenhouse gas emissions, CO2 emissions
派生emit (v. 排放), emission (n. 排放)
Governments should impose stricter limits on carbon emissions from heavy industry.
政府应当对重工业的碳排放施加更严格的限制。
47countless seminars
数不清的研讨会
讲解countless 意为“多得数不清的”，修饰可数名词复数，语气比 many 强，适合写作夸张表达。
搭配attend a seminar, hold a seminar, a series of seminars
近义numerous seminars, innumerable seminars
反义a few seminars, a handful of seminars
Universities host countless seminars each term to help students sharpen their research skills.
大学每学期举办数不清的研讨会，帮助学生提高研究技能。
48manifold creations
各式各样的发明
讲解manifold 作形容词意为“多种多样的”，较正式，多用于书面语，常修饰 benefits、creations、reasons 等。
搭配manifold benefits, manifold forms, manifold applications
近义diverse creations, varied creations, multifarious creations
反义a single creation, uniform creations
派生multiplicity (n. 多样性), multiply (v. 成倍增加)
The exhibition displays manifold creations ranging from solar cars to smart household robots.
这场展览展出了各式各样的发明，从太阳能汽车到智能家用机器人。
49build up
增进，加强
讲解多指逐步、渐进地增强体力、信心或关系，强调过程性，常用于健康、能力等话题。
记忆联想“一层层往上堆”，力量逐渐累积起来。
搭配build up strength, build up confidence, build up a relationship
近义strengthen, increase, develop
反义weaken, reduce
派生buildup (n. 积累，增强)
Regular exercise can build up your strength and improve your overall health.
规律锻炼能增强你的力量并改善整体健康。
50genetically determined
由基因决定的
讲解用于描述先天因素，常出现在讨论nature versus nurture（先天与后天）的雅思写作中。
记忆gene（基因）+ tically（副词后缀）+ determined（决定的）。
搭配genetically determined traits, genetically determined behaviour
近义inherited, inborn, innate
反义environmentally influenced, acquired
派生genetic (adj.), genetics (n.), gene (n.)
Some scientists argue that intelligence is largely genetically determined.
一些科学家认为智力在很大程度上是由基因决定的。
51metabolic rate
代谢速率
讲解常出现在健康、运动、饮食类话题中，指身体消耗能量的速度。
记忆metabolic（新陈代谢的）+ rate（速率）。
搭配high/low metabolic rate, increase metabolic rate, slow metabolic rate
近义metabolism speed, energy expenditure rate
派生metabolism (n.), metabolize (v.), metabolic (adj.)
People with a high metabolic rate tend to burn calories faster than others.
代谢速率高的人往往比其他人更快地燃烧卡路里。
52convict of
证明(判定)…有罪
讲解法律用语，常用被动 be convicted of，表示“被判有……罪”，注意介词用of。
记忆convict（定罪）+ of（因……）。
搭配be convicted of a crime, convict sb of murder, wrongfully convicted
近义find guilty of, sentence for
反义acquit of, clear of
派生conviction (n.), convict (n. 罪犯)
The jury eventually convicted him of fraud after weeks of deliberation.
经过数周审议，陪审团最终判定他犯有欺诈罪。
53sail through
顺利通过(考试等)
讲解口语化表达，强调毫不费力地通过考试或测试，含褒义。
记忆想象船顺风而行，一路畅行无阻。
搭配sail through an exam, sail through an interview, sail through a test
近义breeze through, pass easily
反义struggle with, fail
派生sailing (n.)
She studied hard and sailed through the final exam with ease.
她努力学习，轻松顺利地通过了期末考试。
54oral task
口头任务
讲解多指语言考试或课堂中要求口头完成的任务，强调口语表达。
记忆oral（口头的）+ task（任务）。
搭配complete an oral task, oral task assessment
近义speaking task, oral exercise
反义written task
派生oral (adj.), orally (adv.)
In the oral task, candidates must describe a photo and answer follow-up questions.
在口头任务中，考生必须描述一张照片并回答后续问题。
55air circulation
空气流通
讲解不可数名词短语，常与good/poor/improve搭配，多用于建筑、健康、环境类雅思话题
搭配good air circulation, improve air circulation, poor air circulation
近义ventilation, airflow, air flow
反义stuffiness, stagnation
Good air circulation is essential in classrooms to keep students alert and healthy.
良好的空气流通对保持学生清醒和健康在教室里至关重要。
56branch off
分岔
讲解不及物动词短语，常与from/into连用，描述道路、河流、话题的分支
搭配branch off from, branch off into, branch off to the left
近义fork, diverge, split off
反义merge, converge
The main road branches off into two narrow lanes just beyond the old bridge.
主干道在旧桥过后就分岔成两条狭窄的小路。
57get permission from sb.
得到某人的许可
讲解正式表达，宾语常为authorities/owner/committee，被动式get permission from更常见于学术写作
搭配get permission from the author, obtain permission from, ask for permission
近义obtain consent from, be authorized by
反义be refused permission, be denied access
Researchers must get permission from participants before collecting any personal data.
研究人员在收集任何个人数据前必须得到参与者的许可。
58carbon dioxide
二氧化碳
讲解不可数名词，环境类高频词，常与emit/release/absorb/emissions搭配
搭配emit carbon dioxide, reduce carbon dioxide, carbon dioxide emissions
近义CO2, greenhouse gas
派生carbon footprint, carbon-neutral
Cutting down forests releases huge amounts of carbon dioxide into the atmosphere.
砍伐森林会向大气中释放大量二氧化碳。
59spark of cognition
认知的火花
讲解比喻性名词短语，多用于教育类写作，常与ignite/kindle/stimulate搭配
搭配ignite a spark of cognition, kindle a spark of curiosity
近义flash of insight, spark of curiosity
派生cognitive, cognition-related
A good teacher can ignite a spark of cognition that lasts a student's whole life.
一位好老师能点燃持续学生一生的认知火花。
60creep into
渗透进
讲解不及物动词短语，常与into连用，多接mind/voice/life等抽象名词，含渐进、不知不觉之意
搭配creep into one's mind, creep into daily life, creep into the conversation
近义seep into, sneak into, infiltrate
反义burst into, rush into
Doubt began to creep into her mind as the evidence failed to add up.
随着证据无法对上，疑虑开始悄悄渗入她的脑海。