B2 adverb /rɪˈmɑːrkəbli/

remarkably

引人注目地

Meaning

in a way that is worthy of attention or notice; surprisingly

Example

She did remarkably well in the competition.

她在比赛中表现得引人注目。

B2 noun /rɪˌlaɪəˈbɪləti/

reliability

可靠性

Meaning

the quality of being trustworthy or performing consistently well

Example

Customers value the reliability of our service.

客户重视我们服务的可靠性。

B2 verb /ˈruːɪn/

ruin

毁灭

Meaning

to destroy or damage beyond repair; to spoil completely

Example

Heavy rain could ruin our picnic plans.

大雨可能会毁掉我们的野餐计划。

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 /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 verb /rɪˈtriːt/

retreat

撤退

Meaning

to move back or withdraw from a position or situation

Example

The soldiers had to retreat after losing the battle.

士兵们在失去战斗后不得不撤退。

B2 noun /rɪˈstrɪk.ʃən/

Restriction

限制; 限定; 控制

Meaning

a limiting condition or measure; the limitation or control of someone or something

Example

There are strict restrictions on smoking in public places.

在公共场所吸烟有严格的限制。

B2 noun /ˈrɪə.lɪ.zəm/

realism

现实主义

Meaning

The quality of representing things as they are; a practical or factual view.

Example

Her paintings are admired for their realism.

她的画作因其现实主义而受到赞赏。

B2 noun /rʌʃ/

Rush

匆忙; 急促

Meaning

a sudden quick movement toward something; a period of great activity or demand; hurry

Example

There was a rush to buy tickets for the concert.

为购买音乐会门票而匆忙。

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 /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 noun /ˈreb.əl/

Rebel

叛徒

Meaning

a person who resists authority or control

Example

The young rebel refused to follow the school rules.

那个年轻的叛徒拒绝遵守学校的规定。

B2 adjective /ˈroʊlɪŋ/

rolling

滚动

Meaning

moving in gentle undulations; moving forward by turning over and over

Example

They drove through the rolling hills of the countryside.

他们开车穿过乡村的滚动山丘。

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 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 /ˈrep.taɪl/

Reptile

爬行动物

Meaning

a cold-blooded animal with scaly skin that lays eggs on land

Example

The lizard is a common reptile found in gardens.

蜥蜴是一种常见的爬行动物，常见于花园中。

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 noun /ˈroʊstɪd miːt/

Roasted meat

烤肉

Meaning

meat cooked by dry heat in an oven or over fire

Example

The roasted meat was perfectly seasoned and tender.

烤肉被完美地调味和变得嫩滑。

B2 verb /rɪˈzuːm/

resume

重新开始

Meaning

to start again after a pause or interruption

Example

We will resume the meeting after lunch.

我们将在午餐后继续会议。

B2 adjective /rɪˈspek.tɪv/

Respective

各自的; 相关的

Meaning

belonging to each individual; particular to each

Example

The students returned to their respective classrooms after lunch.

学生们在午餐后回到了各自的教室。

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 /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 verb /rɪˈsaɪt/

recite

背诵

Meaning

To say aloud something learned, especially poetry or text, from memory.

Example

The child recited a poem in front of the class.

孩子在班级前朗诵了一首诗。

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 /ˈrɪɡ.ər.əs/

rigorous

严格

Meaning

Extremely thorough and demanding in analysis or practice.

Example

A rigorous study plan helps students achieve better results.

严格的学习计划帮助学生取得更好的成绩。

B2 noun /ˈruːmər/

Rumour

流言; 八卦; 新闻

Meaning

a currently circulating story or report of uncertain or doubtful truth; gossip

Example

There's a rumour that the company will close next month.

有传言说公司将在下个月关闭。

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 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 /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, 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 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 noun /rɪˈbel.jən/

Rebellion

起义

Meaning

an act of armed resistance to an established government or leader

Example

The rebellion against the king lasted for three years.

反抗国王的起义持续了三年。

B2 noun /ˈreɪtɪŋ/

rating

评分

Meaning

an evaluation or assessment, usually numerical

Example

The movie received a high rating from critics.

这部电影得到了评论家的高评分。

B2 adjective /ˈrɑː.ki/

Rocky

崎岖的; 不稳定的; 困难的

Meaning

full of rocks; unsteady; difficult

Example

The rocky path made hiking difficult for the tourists.

崎岖的小路让游客们的远足变得困难。

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 /rɪˈzɜːv/

reserve

预定

Meaning

to keep something for future use; to book in advance

Example

I want to reserve a table for dinner.

我想为晚餐预订一张桌子。

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 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 noun /ˈrɪb.ən/

ribbon

缎带

Meaning

a long, narrow strip of fabric used for tying or decoration

Example

She tied her hair with a red ribbon.

她用一条红色的缎带绑住了她的头发。

B2 verb /rɪˈteɪn/

retain

保持

Meaning

to keep possession of something

Example

The company decided to retain its experienced employees.

公司决定保留其经验丰富的员工。

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 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 /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 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 noun /ˌrep.ɪˈtɪʃ.ən/

Repetition

重复

Meaning

the action of repeating something that has already been said or written

Example

Constant repetition helps students memorize vocabulary effectively.

持续的重复帮助学生有效地记忆词汇。

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 adjective /rɪˈspek.tə.bəl/

Respectable

体面

Meaning

worthy of respect; having good reputation; decent

Example

He comes from a respectable family in the community.

他来自社区一个体面的家庭。

B2 noun /rɪˈsɪp.i.ənt/

Recipient

接收者

Meaning

a person who receives something

Example

She was the recipient of the prestigious award.

她是这个著名奖项的接收者。

B2 verb /reɪl/

rail

抗议

Meaning

to complain or protest strongly about something

Example

He railed against the unfair decision.

他抗议不公平的决定。

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 verb /rɪˈkɜːr/

recur

Meaning

to happen again, especially repeatedly or at regular intervals

Example

The headache tends to recur every few weeks.

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 /ˈrɒbər/

robber

强盗

Meaning

a person who steals property from others, often using force or threat

Example

The robber was caught after a quick police chase.

经过警方的快速追捕，强盗被抓住了。

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 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 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 noun /red liːf/

Red leaf

红叶

Meaning

red-colored leafy vegetable; amaranth leaves used as greens

Example

Red leaf is rich in iron and is commonly eaten in Bengali households.

红叶富含铁，并且在孟加拉家庭中经常食用。

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 verb /ˌriːjuˈnaɪt/

reunite

重聚

Meaning

to bring together again after separation

Example

The family was reunited after many years.

这个家庭在许多年后重新团聚。

B2 adverb /ˈræp.ɪd.li/

Rapidly

快速地; 迅速

Meaning

at a fast speed; quickly

Example

The company is rapidly expanding into new markets.

公司正在迅速拓展新市场。

B2 noun /ˌrɛvəˈleɪʃən/

revelation

启示

Meaning

A surprising and previously unknown fact, especially one made known in a dramatic way.

Example

The book was full of shocking revelations about the politician.

这本书充满了对政治家的震惊启示。

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 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 /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 verb /rɪˈfreʃ/

refresh

使清新

Meaning

to make fresh again; to restore energy

Example

A cold drink refreshes me on hot days.

冷饮在炎热的日子里让我感到清爽。

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 /rɪˈvɜːs/

reverse

反转

Meaning

to change something to the opposite direction, position, or result

Example

She quickly reversed the car out of the driveway.

她迅速把车从车道上倒了出来。

B2 noun /ˈruːmər/

rumor

谣言

Meaning

a currently circulating story or report of uncertain or doubtful truth.

Example

There’s a rumor that the company will merge next year.

有传闻说公司明年将合并。

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 ˌrev.əˈluː.ʃənz

revolutions

革命

Meaning

Dramatic and wide-reaching changes in political, social, or economic systems, often involving the overthrow of a government or social order.

Example

Revolutions often lead to significant societal changes.

革命常常导致社会变革的重要变化。

B2 noun /ˈrækɪt/

racket

球拍 / 喧闹

Meaning

A piece of equipment used to hit the ball in sports like tennis or badminton; also a loud noise or an illegal scheme.

Example

He bought a new tennis racket for the match.

他为比赛买了一把新网球拍。

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 /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 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 /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 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 /rɪˈmuː.vəl/

Removal

移除; 去除; 解雇;

Meaning

the action of taking something away or eliminating it; dismissal from office

Example

The removal of the old furniture took all day.

移除旧家具花了整整一天。

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 /ˈraɪdər/

rider

骑手

Meaning

A person who rides a horse, bicycle, motorcycle, or other vehicle.

Example

The rider fell off the horse.

骑手从马背上摔了下来。

B2 noun /ˈræŋkɪŋ/

ranking

排名

Meaning

a position in a list or hierarchy, especially in terms of performance or importance

Example

His ranking in the competition improved after each round.

他在比赛中的排名在每一轮之后都有所提高。

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 /ræntʃ/

ranch

牧场

Meaning

a large farm where animals such as cattle or sheep are raised

Example

They own a huge cattle ranch in Texas.

他们在德克萨斯州拥有一个巨大的牧场。

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, 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 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 /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 verb rɪˈstɔːr

restore

恢复

Meaning

To bring back to a former or original state; to reinstate.

Example

Restoring the tradition of student politics is necessary.

恢复学生政治传统是必要的。

B2 noun /ræɡ/

Rag

旧布；用来清洁的破旧衣物

Meaning

a piece of old cloth used for cleaning; worn-out clothing

Example

She used an old rag to clean the dusty table.

她用一块旧布擦拭了满是灰尘的桌子。

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 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 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 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 /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 /ˌriːəˈʃʊr/

reassure

安慰

Meaning

to say or do something to remove someone's doubts or fears

Example

The teacher reassured the students before the exam.

老师在考试前安慰了学生。

B2 adjective /ˈrɪtʃ.u.əl/

Ritual

仪式

Meaning

relating to religious or ceremonial practices

Example

The wedding ceremony included many traditional ritual elements.

婚礼仪式包括许多传统的仪式元素。

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 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 /ˈrɪk.ʃɔː/

Rickshaw

人力车

Meaning

a light two-wheeled passenger vehicle drawn by one or more people

Example

We took a rickshaw to reach the busy marketplace.

我们乘坐人力车前往繁忙的市场。

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 /rɪˈvaɪ.vəl/

Revival

复兴

Meaning

an improvement in the condition or strength of something; renewed interest in or attention to something

Example

There has been a revival of interest in traditional crafts.

传统手工艺的兴趣得到了复兴。

B2 verb /roʊm/

roam

漫游

Meaning

to walk or travel without a specific destination; to wander

Example

Wild animals roam freely in the forest.

野生动物在森林中自由漫游。

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 /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 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 noun /ˌreɡ.jʊˈleɪ.ʃənz/

regulations

规定

Meaning

Rules or directives made and maintained by an authority.

Example

Strict regulations ensure fair practices.

严格的规定确保公平的做法。

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 noun /ˈrɛlɪvənsi/

relevancy

routinely

定期地

Meaning

as part of a regular procedure; habitually

Example

The staff routinely checks the equipment for safety.

工作人员定期检查设备的安全性。

B2 noun /rɪˈfjuː.zəl/

Refusal

拒绝; 拒绝接受

Meaning

the act of saying no to something or not accepting something

Example

His refusal to cooperate made the project more difficult.

他拒绝合作让项目变得更难。

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 /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 verb /rɪˈkʌvərɪŋ/

recovering

恢复

Meaning

the process of getting better after illness, loss, or difficulty

Example

She is still recovering from the flu.

她还在从流感中恢复。

B2 verb /rɪˈvɜːrt/

revert

恢复

Meaning

to return to a previous state, condition, or practice

Example

The system will revert to its original settings after the update.

系统将在更新后恢复到原始设置。

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 /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 adjective ˈræd.ɪ.kəl

radical

能够带来根本性变化，反对传统的信仰或系统

Meaning

Capable of bringing fundamental changes opposite to conventional beliefs or systems.

Example

The leader proposed radical economic reforms.

领导人提议进行激进的经济改革。

B2 verb /reɪd/

raid

突袭

Meaning

to attack suddenly; to search and seize

Example

Police raid the illegal gambling house.

警方突袭非法赌博屋。

B2 verb /ˌriːəˈreɪndʒ/

rearrange

重新安排

Meaning

to change the order or position of something

Example

She decided to rearrange the furniture in her living room.

她决定重新安排客厅里的家具。

B2 noun /ˈrɛzərvwɑːr/

reservoir

水库

Meaning

A large natural or artificial lake used as a source of water supply.

Example

The city built a new reservoir to ensure enough drinking water for its residents.

这座城市建造了一个新的水库，以确保为居民提供足够的饮用水。

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 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。