B2 noun, verb /ˈrætəl/

rattle

嘎啦作响；拨浪鼓

Meaning

to make a rapid series of short, sharp sounds; a device or object that makes such a sound

Example

The loose window began to rattle in the strong wind.

在强风中，松动的窗户嘎啦作响。

B2 noun /rɪˈfɔːr.mər/

Reformer

改革者

Meaning

a person who works to bring about positive changes in society or institutions

Example

The social reformer dedicated her life to improving education for all children.

社会改革者致力于改善所有儿童的教育。

B2 noun ˌreɪ.di.oʊ.ækˈtɪv.ə.ti

radioactivity

放射性

Meaning

The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.

Example

Radioactivity is used in medical treatments like cancer therapy.

放射性在包括癌症治疗在内的医疗治疗中被用于治疗。

B2 adjective /rɪˈmuːvəbəl/

removable

可拆卸的

Meaning

able to be removed or taken away

Example

This phone has a removable battery.

这款手机有一块可拆卸的电池。

B2 noun /reɪk/

Rake

耙子

Meaning

a garden tool with a long handle and prongs for gathering leaves; to gather with a rake

Example

He used a rake to gather the fallen autumn leaves.

他用耙子收集掉落的秋天叶子。

B2 noun /rɪˈstreɪnt/

Restraint

克制; 自我控制

Meaning

the action of keeping someone or something under control; self-control

Example

She showed great restraint in not responding to the criticism.

她在不回应批评时表现出极大的克制。

B2 noun /rɪˈdʒɛkʃən/

rejection

拒绝

Meaning

the action of refusing or dismissing something or someone

Example

Her rejection of the offer surprised everyone.

她拒绝了这个提议，令所有人吃惊。

B2 adjective /ˈrɪdən/

ridden

充斥

Meaning

Full of or dominated by something unpleasant.

Example

The country was ridden with corruption.

这个国家充斥着腐败。

B2 noun /ˈrɛlɪvənsi/

relevancy

Rigid

严格

Meaning

hard and stiff; not able to bend; strict and unwilling to change

Example

The company has a rigid dress code that all employees must follow.

公司有严格的着装要求，所有员工都必须遵守。

B2 noun /ˈreɪsɪzəm/

racism

种族主义

Meaning

the belief that some races are superior to others, leading to unfair treatment or prejudice

Example

The organization works to eliminate racism in all forms.

该组织致力于消除所有形式的种族主义。

B2 noun /ˌriː.ɪnˈfɔːrs.mənt/

reinforcement

强化

Meaning

Strengthening or supporting something, especially behavior or learning.

Example

Positive reinforcement helps in learning.

积极的强化有助于学习。

B2 noun /ˌriː.əˈʃʊr.əns/

Reassurance

安慰

Meaning

comfort or confidence given to someone to remove their fears or doubts

Example

She needed reassurance that everything would be okay.

她需要得到安慰，以确认一切都会好起来。

B2 noun /ˈrerəti/

Rarity

稀有的状态; 不常见或稀缺的东西

Meaning

the state of being rare; something that is uncommon or scarce

Example

The antique vase was a rarity worth thousands of dollars.

古董花瓶是一种稀有物品，价值数千美元。

B2 adjective ˌrev.əˈluː.ʃən.ər.i

revolutionary

革命性的

Meaning

Involving or causing a complete or dramatic change.

Example

Revolutionary ideas are reshaping the industry.

革命性的思想正在改变这个行业。

B2 noun /ræk/

Rack

架子

Meaning

a framework or structure for holding or storing things

Example

She hung her coat on the rack by the door.

她把外套挂在门旁的架子上。

B2 noun /ˈreɪ.dɑːr/

Radar

雷达

Meaning

a system for detecting the presence, direction, distance of aircraft, ships by sending out radio waves

Example

The radar detected an unknown aircraft approaching the base.

雷达探测到一架未知的飞机接近基地。

B2 adjective /rɪˈfaɪnd/

Refined

精致的; 纯净的

Meaning

elegant and cultured in appearance, manner, or taste; purified

Example

She has very refined taste in art and music.

她对艺术和音乐有非常精致的品味。

B2 noun /ˈrɔɪəlti/

royalty

皇室成员 / 特许权使用费 (作者收入)

Meaning

Members of a royal family or payment made to the owner of a patent, copyright, or natural resource.

Example

The author receives a royalty for every book sold.

作者从每本卖出的书中获得特许权使用费。

B2 noun rɪˈzentmənt

resentment

怨恨

Meaning

Bitter indignation at having been treated unfairly.

Example

Resentment grew among the students.

学生们之间的怨恨加剧了。

B2 verb rɪˈzaɪn

resign

辞职

Meaning

Voluntarily leave a job or other position.

Example

Ministers were forced to resign.

部长们被迫辞职。

B2 noun /rɪˈhɜːr.səl/

Rehearsal

彩排; 演出排练

Meaning

a practice performance of a play, concert, or other work for later public performance

Example

The final rehearsal before opening night went perfectly.

开幕夜前的最后一次彩排非常完美。

B2 verb /rɪˈkleɪm/

reclaim

Meaning

To take back or recover something; to restore to a usable state.

Example

The farmer worked to reclaim the barren land.

B2 verb /reɪp/

rape

强奸

Meaning

to force someone to have sexual intercourse without their consent

Example

The law strictly punishes those who commit rape.

法律严惩那些犯强奸罪的人。

B2 noun /ˌren.əˈveɪ.ʃən/

Renovation

翻新; 恢复

Meaning

the act of renovating; restoration to a former better state

Example

The old house underwent a complete renovation last year.

去年老房子进行了彻底的翻修。

B2 noun /reɪˈʒiːm/

regime

政权

Meaning

a system or form of government, often authoritarian

Example

The military regime controlled the country for decades.

军事政权控制了这个国家几十年。

B2 noun /ˌrɛprɪzɛnˈteɪʃən/

representation

代表

Meaning

the action of speaking or acting on behalf of someone or something

Example

Her representation of the team was impeccable.

她对团队的代表非常出色。

B2 noun rɪˈtɛnʃən

retention

保持

Meaning

The continued possession, use, or control of something

Example

The retention of information is essential for academic success.

信息的保持对学术成功至关重要。

B2 verb /ˌriːprəˈdjuːs/

reproduce

再生产, 繁殖

Meaning

To make a copy of something; to generate offspring.

Example

Many animals reproduce rapidly in favorable conditions.

许多动物在有利的条件下快速繁殖。

B2 verb /rɪˈkɔːl/

recall

回忆

Meaning

to bring (a memory, fact, or situation) back into one's mind

Example

I can't recall the last time we met.

我记不得我们上次见面是什么时候。

B2 noun, verb /rɪˈzɔːrt/

resort

度假村 / 最后的选择

Meaning

A place for rest or recreation; to turn to something for help or solution.

Example

They stayed at a beach resort during their vacation.

他们在度假期间住在海滩度假村。

B2 adjective /ˈrek.ləs/

Reckless

鲁莽的; 冒失的; 危险的;

Meaning

acting without thinking about consequences; careless; dangerous;

Example

His reckless driving caused a serious accident.

他的鲁莽驾驶导致了严重的事故。

B2 noun rɪsk ˈfæktər

risk factor

风险因素

Meaning

Something that increases the likelihood of developing a disease or condition

Example

Water pollution is a significant risk factor for health.

水污染是健康的一个重要风险因素。

B2 verb /riːˈɔːrɡənaɪz/

reorganize

重新组织

Meaning

to arrange something again in a different way for greater efficiency or order

Example

The manager decided to reorganize the team structure.

经理决定重新组织团队结构。

B2 noun /rɛlm/

realm

Meaning

A kingdom or domain; a field or area of activity or interest.

Example

He is well known in the realm of science.

B2 noun ˌriːfɔːˈreɪʃən

reforestation

重新造林

Meaning

The natural or intentional restocking of existing forests and woodlands that have been depleted.

Example

Reforestation efforts are crucial to restoring ecosystems.

重新造林的努力对恢复生态系统至关重要。

B2 verb /rɪˈzɑlv/

resolve

解决

Meaning

to solve a problem; to decide firmly

Example

The manager resolves the conflict between employees.

经理解决了员工之间的冲突。

B2 noun /ˈrɛnəˌsɑːns/

renaissance

文艺复兴

Meaning

a revival of art, culture, or learning; a period of renewed interest and growth

Example

The city experienced a cultural renaissance during the 1990s.

这座城市在1990年代经历了文化复兴。

B2 adjective /rɪˈstrɪk.tɪd/

Restricted

有限制的或控制的；受限制的

Meaning

limited or controlled; subject to restrictions

Example

Access to this area is restricted to authorized personnel only.

进入此区域仅限授权人员。

B2 verb /rɪˈvaɪv/

revive

复苏

Meaning

To bring back to life, consciousness, or activity.

Example

The paramedics managed to revive the unconscious man.

急救员成功让昏迷的男子复苏。

B2 adjective /ˈruː.mi/

Roomy

宽敞的; 有很多空间的

Meaning

spacious; having a lot of room

Example

The apartment is very roomy with spacious bedrooms.

公寓非常宽敞，拥有宽大的卧室。

B2 noun /reɪdʒ/

rage

愤怒

Meaning

intense anger or fury

Example

She shouted in a fit of rage after hearing the news.

她听到消息后在愤怒中大喊。

B2 noun /ˈroʊ.lɪŋ pɪn/

Rolling pin

擀面杖

Meaning

a cylindrical tool used for rolling out dough or pastry

Example

Roll the dough flat with a rolling pin.

用擀面杖把面团擀平。

B2 noun /ˈruːdnəs/

Rudeness

粗鲁

Meaning

the quality of being impolite, discourteous, or offensive in behavior or speech

Example

His rudeness shocked everyone at the dinner party.

他的粗鲁在晚宴上震惊了所有人。

B2 noun /ˌrɛɡ.jʊˈleɪ.ʃən/

regulation

由权威制定和维护的规则或指令

Meaning

A rule or directive made and maintained by an authority.

Example

Government regulation ensures fair business practices.

政府规则确保公平的商业实践。

B2 adjective /rɪˈɡret.ə.bəl/

Regrettable

令人遗憾的; 不幸的; 可惜的

Meaning

causing or deserving regret; unfortunate; deplorable

Example

It is regrettable that so many talented people left the company.

很遗憾这么多有才华的人离开了公司。

B2 verb /rɪˈzɪst/

resist

抵抗

Meaning

to oppose or fight against; to withstand

Example

He could not resist the temptation.

他无法抵抗诱惑。

B2 noun, verb /ræmp/

ramp

坡道

Meaning

a sloping surface joining two different levels; as a verb, to increase or rise sharply

Example

The car drove up the ramp into the parking garage.

汽车驶上了停车场的坡道。

B2 verb /rɪˈkruːt/

recruit

招募

Meaning

to enlist or hire people for a job, service, or membership

Example

The company is trying to recruit more software engineers.

这家公司正在努力招募更多的软件工程师。

B2 noun ˌriːkənˈstrʌkʃn

reconstruction

重建

Meaning

The action or process of reconstructing or being reconstructed.

Example

The reconstruction project took years.

重建项目花了几年时间。

B2 adjective /rɪˈlaɪ.ənt/

reliant

依赖的

Meaning

depending on someone or something for support

Example

The country is too reliant on imported goods.

这个国家过于依赖进口商品。

B2 noun ˌrɛstəˈreɪʃən

restoration

修复

Meaning

The process of returning something to its former condition.

Example

The restoration of the forest began after decades of neglect.

森林的修复开始于数十年的忽视之后。

B2 noun /rɪˈsɛs/

recess

休息

Meaning

A short break from work or school; also a small space set back in a wall.

Example

The children played outside during recess.

孩子们在休息期间在外面玩耍。

B2 verb /rɪˈvoʊlt/

revolt

反抗

Meaning

to rebel against authority; to feel disgust

Example

The people revolted against the corrupt government.

人民反抗腐败的政府。

B2 verb /rɪˈliːv/

relieve

Meaning

to make pain, distress, or difficulty less severe or serious

Example

The medicine helped relieve his headache.

B2 noun /roʊst/

Roast

烤肉

Meaning

Meat cooked by dry heat in an oven or over an open fire

Example

The Sunday roast was perfectly cooked and very tender.

周日的烤肉被煮得非常完美，肉质非常嫩。

B2 noun /ˈrem.ə.di/

Remedy

药物；治疗；补救办法

Meaning

a medicine or treatment for a disease; a solution to a problem

Example

This herbal remedy helps with headaches.

这种草药治疗有助于缓解头痛。

B2 verb /rɪˈzɛmbəl/

resemble

像

Meaning

to look like or be similar to something or someone

Example

She resembles her mother in both appearance and mannerisms.

她在外貌和举止上都像她母亲。

B2 adjective /ˈrændəm/

Random

随机

Meaning

without pattern or predetermined order; happening by chance

Example

She selected a random book from the library shelf.

她从书架上挑选了一本随机的书。

B2 noun /ˈruːstər/

rooster

公鸡

Meaning

A male domestic chicken, especially one that crows.

Example

The rooster crowed at dawn, waking up the whole village.

公鸡在黎明时分打鸣，唤醒了整个村庄。

B2 verb /rɪp/

rip

撕裂

Meaning

to tear something quickly or violently

Example

He accidentally ripped his shirt on the fence.

他不小心在篱笆上撕破了衬衫。

B2 noun /rɒd/

rod

细长的棒子，尤其是金属或木制的

Meaning

a thin straight bar, especially of metal or wood

Example

He used an iron rod to support the structure.

他用铁棒支撑结构。

B2 noun, verb /ˈriːteɪl/

retail

零售

Meaning

the sale of goods to the public in small quantities for use or consumption rather than for resale

Example

The company specializes in the retail of clothing and accessories.

公司专注于服装和配件的零售业务。

B2 adjective /ˈreɪsɪst/

racist

种族主义者

Meaning

showing or feeling discrimination or prejudice against people of other races

Example

He was accused of making racist comments.

他被指控发表种族主义的评论。

B2 noun /ˈriːteɪlər/

retailer

零售商

Meaning

a person or business that sells goods to consumers rather than to other businesses

Example

The retailer offers discounts on electronic products.

零售商提供电子产品的折扣。

B2 adjective /rɪˈsɔːrsfəl/

resourceful

Meaning

Having the ability to find quick and clever ways to overcome difficulties.

Example

She is very resourceful when it comes to solving unexpected problems.

B2 noun /rɪˈvendʒ/

Revenge

复仇

Meaning

the action of inflicting hurt or harm on someone for an injury or wrong suffered at their hands

Example

She sought revenge against those who betrayed her trust.

她寻求复仇，针对那些背叛她信任的人。

B2 noun rɪˈzɪl.i.əns

resilience

韧性

Meaning

The ability to recover quickly from difficulties; toughness.

Example

Testing the resilience of wood is crucial.

测试木材的韧性是至关重要的。

B2 noun /ˈraɪvəlri/

Rivalry

竞争; 对抗

Meaning

competition for the same objective or for superiority in the same field; the state of being rivals

Example

The rivalry between the two teams made the match exciting.

两个队伍之间的竞争使比赛变得非常刺激。

B2 noun/verb /ræft/

raft

筏

Meaning

A flat structure made of logs or planks tied together, used as a boat or floating platform; to travel or transport on such a structure.

Example

They built a raft to cross the river.

他们建造了一只筏子来过河。

B2 verb /ˈrendər/

render

提供

Meaning

to provide or give; to make or cause to become

Example

The artist renders the scene beautifully.

艺术家美丽地渲染了场景。

B2 noun /ˈreɪn.dʒər/

ranger

巡护员

Meaning

A person responsible for protecting and managing forests, parks, or natural areas.

Example

The park ranger guided the tourists through the forest trail.

公园巡护员带领游客走过森林小道。

B2 adjective /rɪˈflektɪv/

Reflective

反射的; 沉思的; 能反射光或图像

Meaning

thoughtful; contemplative; able to reflect light or images

Example

After the meeting, he was in a reflective mood.

会议后，他处于沉思的状态。

B2 noun /rɪm/

rim

边缘

Meaning

the outer edge or border of a circular object

Example

The coffee cup had a chip on its rim.

咖啡杯的边缘有个裂痕。

B2 noun /ˈreɪʃoʊ/

ratio

比例

Meaning

a relationship between two numbers showing how many times the first number contains the second

Example

The ratio of boys to girls in the class is 2:1.

班级中男生和女生的比例是2:1。

B2 verb /ˈræl.i/

rally

Meaning

to come together for a common purpose or to recover strength or spirit

Example

The team rallied after halftime and won the match.

B2 verb /rɪˈkɜːr/

recur

Meaning

to happen again, especially repeatedly or at regular intervals

Example

The headache tends to recur every few weeks.

B2 noun /ˈrɪdəl/

Riddle

谜语

Meaning

a question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning; a puzzle

Example

The ancient riddle stumped all the scholars for years.

古老的谜语让所有学者困扰了多年。

B2 verb /ˌriːˈbɪld/

rebuild

重建

Meaning

to build something again after it has been damaged or destroyed

Example

The villagers worked together to rebuild the bridge after the flood.

村民们一起努力，在洪水后重建了桥梁。

B2 adjective /ˈreɪʃəl/

racial

种族的

Meaning

relating to a race of people

Example

Racial equality is an important issue in many societies.

种族平等是许多社会中的一个重要问题。

B2 verb /rɪˈfreɪn/

refrain

避免

Meaning

To hold oneself back from doing something.

Example

Please refrain from smoking in this area.

请勿在此区域内吸烟。

B2 adjective /ˈrʌs.ti/

Rusty

生锈的; 不熟练的; 由于缺乏近期练习而受损

Meaning

affected by rust; out of practice; impaired by lack of recent practice

Example

My piano skills are rusty after not playing for years.

我的钢琴技巧生锈了，因为多年没有练习。

B2 verb /reɪn/

reign

统治

Meaning

to rule as a king or queen; to be dominant

Example

The queen reigned for over sixty years.

女王统治了超过六十年。

B2 adjective ˌriːprəˈdʌktɪv

reproductive

繁殖的

Meaning

Relating to the reproduction of offspring.

Example

The reproductive cycle of pests can cause rapid infestations.

害虫的繁殖周期可能导致快速的感染。

B2 noun /ˌriːprəˈdʌkʃən/

reproduction

繁殖, 再生产

Meaning

The process of producing offspring; the act of copying or duplicating.

Example

The textbook included a detailed diagram of human reproduction.

课本中包含了人类繁殖的详细图表。

B2 verb /rɪˈzɛnt/

resent

怨恨

Meaning

to feel bitterness or displeasure about something or someone

Example

She began to resent the constant criticism from her boss.

她开始对老板的不断批评感到愤恨。

B2 verb /ˌriːkriˈeɪt/

recreate

重新创建

Meaning

to create or produce something again, especially a new version of something lost or destroyed

Example

The team recreated the lost dataset from backups.

团队从备份中重新创建了丢失的数据集。

B2 verb /ˈrʌm.bəl/

rumble

幸福

Meaning

to make a continuous deep, resonant sound

Example

Thunder rumbled in the distance.

当她收到奖项时，她无法隐藏自己的幸福。

B2 noun ˈruθləs ˌkɑmpəˈtɪʃən

ruthless competition

无情的竞争

Meaning

Fierce and merciless rivalry or contest, without pity or compassion.

Example

Ruthless competition for power leads to societal issues.

为了权力的无情竞争导致了社会问题。

B2 noun /rɪˈmeɪn.dər/

Remainder

剩余部分; 剩下的东西

Meaning

the part that is left over; what remains after the other parts have been taken away

Example

The remainder of the food was stored in the refrigerator.

剩下的食物被存放在冰箱里。

B2 noun rɪˈpʌb.lɪk

republic

共和国

Meaning

A state in which supreme power is held by the people and their elected representatives, with an elected or nominated president rather than a monarch.

Example

A republic is governed by representatives of the people.

共和国由人民的代表治理。

B2 adjective /ræʃ/

rash

草率, 鲁莽

Meaning

Acting quickly without careful consideration; reckless.

Example

It was a rash decision to invest without research.

没有研究就投资是一个鲁莽的决定。

B2 noun /ˈreɪ.zər/

Razor

剃须刀

Meaning

a sharp-edged instrument used for shaving hair from the skin

Example

He shaved his beard with a sharp razor.

他用一把锋利的剃须刀刮胡子。

B2 verb /ˈreɡjəleɪt/

regulate

监管；调节；规范；控制

Meaning

to control or maintain according to rules or laws

Example

The government regulates food safety.

政府对食品安全进行监管。

B2 adjective /rɪˈfreʃ.ɪŋ/

Refreshing

清新

Meaning

making one feel energized and renewed; pleasantly new or different

Example

The cool breeze was refreshing after the hot day.

在炎热的日子之后，凉爽的微风让人感觉清新。

B2 adjective /ˈræp.ɪd/

Rapid

快速的；迅速的；急速的；

Meaning

happening in a short time or at a fast pace

Example

The rapid growth of technology has changed our daily lives.

技术的快速增长改变了我们的日常生活。

B2 verb /rɪˈfaɪn/

refine

改进

Meaning

to improve by making small changes; to purify

Example

The chef refines the recipe to perfection.

厨师将食谱完善到完美。

B2 adjective /rɪˈspɒn.sɪv/

Responsive

响应的

Meaning

reacting quickly and positively; readily reacting to suggestions or changes

Example

The website is very responsive and loads quickly on all devices.

这个网站非常响应，能快速加载所有设备。

B2 verb /rɪˈzaɪd/

reside

居住

Meaning

to live or dwell in a particular place

Example

They reside in a large house near the river.

他们住在河边的一座大房子里。

B2 adverb /rɪˈlʌk.tənt.li/

Reluctantly

不情愿地

Meaning

in an unwilling manner; with hesitation or resistance

Example

She reluctantly agreed to help with the project.

她不情愿地同意帮助这个项目。

B2 noun /rʌst/

Rust

铁锈

Meaning

reddish-brown coating formed on iron or steel by oxidation; corrosion

Example

The old car was covered in rust after years of neglect.

那辆旧车在多年忽视之后被铁锈覆盖。

B2 noun /ˌref.jʊˈdʒiː/

Refugee

难民

Meaning

a person who has been forced to leave their country in order to escape war, persecution, or natural disaster

Example

The refugee camp provided temporary shelter for thousands of displaced families.

难民营为成千上万的流离失所的家庭提供了临时庇护。

B2 noun ˌreɪdɪˈeɪʃən

radiation

辐射

Meaning

The emission of energy as electromagnetic waves or as moving subatomic particles.

Example

Radiation from the sun can be harmful without protection.

太阳的辐射没有保护可能是有害的。

B2 verb /ˌriː.ɪnˈfɔːrs/

reinforce

加固

Meaning

To strengthen or support something with additional material, people, or effort.

Example

The teacher used examples to reinforce the lesson.

老师使用示例来加固这节课。

B2 noun /ˌrezəˈveɪʃən/

Reservation

预订

Meaning

the action of reserving something; an arrangement whereby something is reserved for a particular person; a qualification to an expression of agreement or approval

Example

I made a reservation at the restaurant for tonight.

我为今晚在餐厅做了一个预定。

B2 noun /ˈraɪət/

Riot

骚乱; 暴乱

Meaning

a violent disturbance of the peace by a crowd; an uncontrolled outburst

Example

The peaceful protest turned into a riot when violence broke out.

和平抗议活动在暴力爆发时变成了骚乱。

B2 noun /ˈruːlɪŋ/

ruling

裁决

Meaning

an official decision made by a judge or authority.

Example

The court’s ruling favored the defendant.

法院的裁决对被告有利。

B2 noun /ˈrɛfjuːdʒ/

refuge

避难所

Meaning

a place that provides shelter or protection from danger or distress

Example

The villagers took refuge in the temple during the storm.

村民们在风暴期间躲进了寺庙避难。

B2 adjective /ˈrɪski/

risky

Meaning

Involving the possibility of danger, harm, or loss

Example

Investing in that startup is risky but could bring high rewards.

B2 noun /ˈrest.ləs.nəs/

Restlessness

不安

Meaning

the inability to rest or relax as a result of anxiety or boredom

Example

His restlessness during the long meeting was obvious to everyone.

在长时间的会议中，他的不安对每个人都很明显。

B2 noun /ˌrek.riˈeɪ.ʃən/

Recreation

娱乐活动; 使某物再次存在的过程

Meaning

an activity that is done for enjoyment; the process of making something exist again

Example

The park provides recreation facilities for children and adults.

公园为儿童和成人提供娱乐设施。

B2 noun /'ræd.ɪʃ/

Radish

小萝卜

Meaning

a small pungent edible root vegetable with white or red skin

Example

The farmer harvested fresh radishes from the garden.

农民从花园里收获了新鲜的小萝卜。

B2 adjective /ˈræʃ.ən.əl/

Rational

理性; 合理; 逻辑

Meaning

based on reason and logic; sensible and practical

Example

She made a rational decision based on the available facts.

她根据可用的事实做出了理性的决定。

B2 adjective /ˈruːθ.ləs/

Ruthless

无情的; 残忍的; 毫无怜悯的

Meaning

showing no pity or compassion; cruel; merciless

Example

The ruthless dictator showed no mercy to his enemies.

那个冷酷的独裁者对他的敌人毫不留情。

B2 adjective /ˈrʌn daʊn/

run-down

破旧的

Meaning

in a poor condition; worn out or neglected

Example

They live in a run-down house at the edge of town.

他们住在城市边缘的一座破旧的房子里。

B2 adjective /rɪˈliːvd/

relieved

松了一口气

Meaning

feeling happy and less worried after something stressful has been removed or resolved

Example

She felt relieved after hearing the good news.

听到好消息后，她感到松了一口气。

B2 noun /ˈriːzənɪŋ/

reasoning

推理

Meaning

the process of thinking about something in a logical way in order to form a conclusion or judgment

Example

Her reasoning for leaving was clear and logical.

她离开的推理是清晰和合逻辑的。

B2 noun /rɪb/

Rib

肋骨

Meaning

one of the curved bones that protect the chest and lungs

Example

He broke his rib in the accident.

他在事故中断了一根肋骨。

B2 noun /ˈraɪvəl/

Rival

竞争对手; 对手;

Meaning

a person or thing competing with another for the same objective or for superiority in the same field

Example

The two companies have been business rivals for decades.

这两家公司已经是商业竞争对手几十年了。

B2 noun ˌrɛzɪɡˈneɪʃən

resignation

辞职

Meaning

The acceptance of something undesirable but inevitable; giving up.

Example

Her resignation from the position was unexpected.

她辞去了职位，这是出乎意料的。

B2 adverb /ˈraɪtli/

Rightly

正确地; 适当地; 公正地

Meaning

correctly; properly; justly

Example

She rightly pointed out the mistakes in the report.

她正确地指出了报告中的错误。