rhythm
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B1 noun /ˈrɪðəm/

rhythm

节奏
Meaning
a strong, regular, repeated pattern of movement or sound
Example
The rhythm of the music made everyone want to dance.
音乐的节奏让每个人都想跳舞。
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。
C1 adjective /rɪˈflek.sɪv/

Reflexive

反思的; 自我反省的
Meaning
directed back on itself; showing deep thought about oneself
Example
She became more reflexive about her behavior after the feedback.
她在反馈后变得更加反思自己的行为。
C2 noun /rɪˈvaɪ.zəl/

revisal

修订
Meaning
The act of revising, reviewing, or making changes to something.
Example
The revisal of the contract took longer than expected.
合同的修订比预期花费了更多时间。
C1 adjective /ˈrɔːkəs/

raucous

喧闹的, 吵杂的
Meaning
loud, harsh, and unpleasant sound or behavior
Example
The crowd became raucous after the team scored.
当球队进球后，人群变得喧闹起来。
B2 noun ˈrɛstɪŋ pleɪs

resting place

安息地
Meaning
A place where someone or something rests, especially a burial site.
Example
The resting place of the martyrs is near the river.
烈士的安息地靠近河流。
C1 verb /rɪˈbʌf/

rebuff

拒绝
Meaning
to reject or refuse in a sharp or abrupt way
Example
She rebuffed his invitation to dinner.
她拒绝了他的晚餐邀请。
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 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。
A2 adverb /ˈriː.sənt.li/

Recently

最近
Meaning
in the recent past; not long ago
Example
I recently moved to a new apartment.
我最近搬到了一个新公寓。
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.
B1 verb /rɪˈper/

repair

修理
Meaning
to fix something that is broken or damaged
Example
The mechanic will repair the car's engine tomorrow.
机械师明天将修理汽车发动机。
A1 verb /raɪd/

ride

骑/骑行
Meaning
to travel on or in a vehicle; to sit on and control a horse
Example
She likes to ride her bicycle to work.
她喜欢骑自行车去工作。
B1 noun ˌrekəɡˈnɪʃn

recognition

认可
Meaning
Acknowledgment of the existence, validity, or legality of something; appreciation or acclaim for an achievement, service, or ability.
Example
He earned recognition after years of struggle.
他在多年奋斗后获得了认可。
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。
C2 noun /ˈreɪmənt/

raiment

衣服
Meaning
clothing, especially fine or formal wear
Example
The king wore royal raiment during the ceremony.
国王在仪式上穿着皇家衣服。
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 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。
C1 verb /riːˈpeɪ.tri.eɪt/

repatriate

遣返
Meaning
To return someone to their own country, often after war or imprisonment.
Example
The government worked to repatriate the refugees safely.
政府努力确保安全地将难民遣返回国。
B2 verb /ˈrɛkən/

reckon

推测
Meaning
To think, believe, or expect something; to calculate or estimate.
Example
I reckon it will rain later today.
我猜今天稍后会下雨。
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。
A2 noun /rɪˈlɪdʒ.ən/

religion

宗教
Meaning
a system of faith and worship involving belief in a higher power
Example
Freedom of religion is a fundamental human right.
宗教自由是基本人权。
C2 noun /rɪˈmɒnstrəns/

remonstrance

抗议
Meaning
A forceful protest or objection.
Example
The workers’ remonstrance against unfair treatment was ignored.
工人的抗议反对不公平待遇被忽视了。
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。
C1 noun /ræˈpɔːr/

rapport

关系
Meaning
A close and harmonious relationship in which the people or groups concerned understand each other's feelings or ideas.
Example
The teacher built a strong rapport with her students.
老师与学生建立了良好的关系。
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 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 /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。
C1 noun /rɪˈpʌlʃən/

Repulsion

排斥
Meaning
a feeling of intense distaste or disgust; a force under the influence of which objects tend to move away from each other
Example
She felt a strong repulsion towards the idea of eating insects.
她对吃昆虫这个想法感到强烈的排斥。
C1 noun /rɪˈmɛmbrəns/

remembrance

纪念
Meaning
the act of remembering or honoring someone or something
Example
A service was held in remembrance of the fallen soldiers.
为阵亡士兵举行了纪念仪式。
B2 noun /rɪˈlʌk.təns/

Reluctance

不情愿; 犹豫
Meaning
unwillingness to do something; hesitation
Example
He showed reluctance to accept the job offer.
他表现出不情愿接受工作提议。
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。
C1 noun rɪˈdʌndənsi

redundancy

冗余，过剩
Meaning
The state of being not or no longer needed or useful; superfluousness.
Example
The redundancy in the company's workforce led to many layoffs.
公司员工中的冗余导致了大量裁员。
C1 noun ˌrɛk.əˈlɛk.ʃən

Recollection

回忆
Meaning
Remembering past events or information
Example
His recollection of childhood memories was vivid.
他对童年记忆的回忆很生动。
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 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。
C2 adjective /ˈroʊziət/

roseate

玫瑰色的，乐观的
Meaning
Having a pink color; optimistic or idealistic.
Example
She looked at the future with roseate optimism.
她以玫瑰色的乐观主义看待未来。
C1 verb /ˈruː.mɪ.neɪt/

ruminate

深思, 反刍
Meaning
to think deeply about something; to chew cud (for animals)
Example
She sat alone to ruminate on her decision.
她坐在一起，深思自己的决定。
C1 verb /rɒmp/

romp

快乐地玩耍
Meaning
to play or move in a lively, carefree, and energetic way
Example
The children romped happily in the garden.
孩子们在花园里高兴地玩耍。
C2 verb /ˌrɛprɪˈhɛnd/

reprehend

谴责
Meaning
to express disapproval or criticism of someone or something
Example
The teacher reprehended the student for being dishonest.
老师因学生不诚实而批评了他。
C1 verb /riːˈkæptʃər/

recapture

重新夺回
Meaning
To take back or regain possession of something.
Example
The army managed to recapture the lost territory.
军队成功地重新夺回了失去的领土。
B1 verb /ˌrɛprɪˈzɛnt/

represent

代表
Meaning
to act or speak on behalf of someone or something
Example
He will represent our company at the conference.
他将在会议中代表我们的公司。
C1 adjective /rɪˈpliːt/

replete

充满
Meaning
Filled or well-supplied with something; abundantly full.
Example
The book is replete with fascinating historical details.
这本书充满了迷人的历史细节。
B1 noun ˈreɪn.fɒr.ɪst

rainforest

热带雨林
Meaning
A luxuriant, dense forest rich in biodiversity, found typically in tropical areas with consistently heavy rainfall.
Example
The Amazon rainforest is home to millions of species.
亚马逊热带雨林是数百万种物种的家园。
C1 noun /rɪˈsaɪtər/

reciter

朗诵者
Meaning
a person who recites or repeats something aloud from memory, especially poetry, prayers, or formal texts
Example
The reciter delivered the poem with clarity and emotion.
朗诵者清晰而富有感情地朗诵了这首诗。
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。
A2 adjective /rɪtʃ/

Rich

富有的; 有钱的; 宝贵的
Meaning
having a lot of money or valuable possessions; abundant in nutrients or flavor
Example
The rich businessman donated money to the charity.
富有的商人向慈善捐款。
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。
C2 noun /ˈrɛkluːsəri/

reclusory

隐居地
Meaning
A place for seclusion or retreat, especially for a recluse or hermit.
Example
The monk spent years in the reclusory away from society.
那位和尚在远离社会的隐居地度过了多年。
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。
C1 adjective /rɪˈsɛptɪv/

receptive

善于接受
Meaning
Willing to listen to or accept new ideas, suggestions, or experiences.
Example
She was receptive to feedback from her colleagues.
她对同事们的反馈持开放态度。
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 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。
A2 noun /ˈruːlər/

ruler

统治者; 尺子
Meaning
A person who governs or controls a country; a straight-edged tool used for measuring or drawing lines
Example
The ruler drew a straight line on the paper while the king was a powerful ruler of his kingdom.
鲁勒在纸上画了一条直线，而国王是他王国的强大统治者。
C1 verb /ˌrɛzəˈrɛkt/

resurrect

复活
Meaning
To bring back to life or revive something from the past.
Example
The director decided to resurrect the old play for a new audience.
导演决定让旧剧本为新的观众复活。
B1 noun /rɪˈsɔːrs/

resource

资源
Meaning
A supply of materials, money, or assets that can be used when needed.
Example
Water is a vital natural resource.
水是宝贵的自然资源。
C2 verb /ˈrævəl/

ravel

缠绕 / 解开
Meaning
to tangle or complicate; to untangle or unravel depending on context
Example
She began to ravel the loose threads of the sweater.
她开始解开毛衣上的松线。
C1 adjective /rɪˈdʒɛn.ə.rə.tɪv/

regenerative

再生的
Meaning
Able to restore or renew damaged environments, soil, or resources.
Example
Regenerative farming improves soil health and biodiversity.
再生农业改善了土壤健康和生物多样性。
C2 adjective /rɪˈfjuː.tə.bəl/

Refutable

可反驳的
Meaning
capable of being proven wrong or false; able to be disproved
Example
His theory was refutable because it could be tested experimentally.
他的理论是可以被反驳的，因为它可以通过实验测试。
C1 adjective /ˈræb.ɪd/

rabid

狂热的
Meaning
Having extreme or fanatical support for something; relating to or suffering from rabies.
Example
He was a rabid fan of the football team.
他是足球队的狂热粉丝。
C2 verb /rɪˈɡeɪl/

regale

娱乐
Meaning
To entertain or amuse someone with stories, food, or drink.
Example
He regaled us with stories of his travels around the world.
他用他的旅行故事来娱乐我们。
C1 adjective /rɪˈvoʊltɪŋ/

revolting

令人作呕的
Meaning
extremely unpleasant or disgusting
Example
The smell of the garbage was revolting.
垃圾的气味令人作呕。
C1 adjective /ˈrɛzənənt/

resonant

共鸣的
Meaning
Deep, clear, and continuing to sound or echo.
Example
The resonant voice of the speaker filled the hall.
演讲者那共鸣的声音充满了大厅。
C2 noun /ˈrɒndoʊ/

rondo

音乐作品（具有重复主题）
Meaning
a musical composition with a recurring leading theme
Example
The pianist ended the recital with a lively rondo.
钢琴家以一首生动的朗多结束了演奏。
C1 verb /rænt/

rant

大喊大叫
Meaning
to speak or shout in an angry, uncontrolled way
Example
He ranted about the unfair treatment at work.
他在工作中大声抱怨不公正的待遇。
C1 adjective /rɪˈtɔːrɪkəl/

rhetorical

修辞的
Meaning
relating to the art of effective or persuasive speaking or writing; often a question asked to make a point rather than get an answer
Example
He asked a rhetorical question during the debate.
他在辩论中提出了一个修辞性问题。
C2 adjective /ˈrʌdi/

ruddy

红润
Meaning
Having a healthy red color in the face.
Example
She had a ruddy complexion from working outdoors.
她因为在户外工作，脸上有红润的肤色。
A2 noun /ˈriː.zənz/

reasons

原因
Meaning
Causes, explanations, or justifications for an action or event.
Example
Reasons for pollution need addressing urgently.
污染的原因需要紧急处理。
C1 noun /rɪˈtrækʃən/

retraction

撤回，撤回声明
Meaning
the act of taking back a statement, promise, or belief
Example
The newspaper issued a retraction of the false report.
报纸发布了对虚假报道的撤回。
B1 verb /rɪˈliːs/

release

释放
Meaning
to set free; to allow something to escape or go away
Example
The prisoner was released after ten years.
囚犯在十年后被释放。
C1 noun /ˈredʒ.ɪ.mən/

regimen

为促进或恢复健康而规定的治疗、生活方式或饮食方案
Meaning
A prescribed course of medical treatment, way of life, or diet for the promotion or restoration of health.
Example
A strict exercise regimen improves overall fitness.
严格的锻炼方案改善了整体健康。
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。
C1 noun /ˈræftər/

rafter

屋梁
Meaning
One of the sloping beams that supports a roof.
Example
The old barn’s rafters were exposed.
老谷仓的屋梁暴露在外。
C2 verb /rɪˈpruːv/

reprove

批评
Meaning
to criticize or correct someone gently or disapprove of their actions
Example
The teacher reproved the student for being late.
老师因学生迟到而批评了他。
C2 adjective /rɪˈkæl.sɪ.trənt/

recalcitrant

倔强的, 顽固的, 不服从的
Meaning
Having an obstinately uncooperative attitude toward authority or discipline.
Example
The recalcitrant student refused to follow rules.
倔强的学生拒绝遵守规则。
C2 adjective /ˈreə.rɪ.faɪd/

rarefied

Meaning
Of high moral, intellectual, or cultural value; distant from ordinary life.
Example
He works in the rarefied world of classical music.
B1 verb /rɪˈspɒnd/

respond

回应
Meaning
to give an answer or reply; to react to something
Example
Please respond to my email as soon as possible.
请尽快回复我的电子邮件。
A2 noun /roʊl/

role

角色
Meaning
a part or function of something
Example
Her role in the project was crucial.
她在项目中的角色至关重要。
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.
C1 adjective /ˈreɪdiənt/

radiant

光彩照人
Meaning
Shining brightly; expressing great happiness.
Example
She looked radiant in her wedding dress.
她在婚礼上穿着婚纱，看起来非常耀眼。
C2 noun /ˈrɛkwiəm/

requiem

安魂曲
Meaning
A mass, music, or ceremony for the repose of the souls of the dead.
Example
The choir performed a requiem in memory of the late leader.
合唱团为已故领导人表演了安魂曲。
C1 verb /ˈræn.də.maɪz/

randomize

随机化
Meaning
To make something happen in a random order or manner.
Example
The software can randomize the order of questions.
软件可以随机排列问题的顺序。
B2 verb /ˈræm.bəl/

ramble

Meaning
to talk or write at length in a confused or inconsequential way; to walk for pleasure without a fixed route.
Example
He rambled on about his childhood for hours.
C1 noun /ˈreɪdiəns/

radiance

光辉
Meaning
the quality of shining with bright light; a glowing or beaming quality
Example
Her face was filled with radiance after hearing the good news.
她在听到好消息后，脸上充满了光辉。
C1 noun ˈrɔɪəl ˈbɛŋɡəl ˈtaɪɡər

Royal Bengal Tiger

皇家孟加拉虎
Meaning
A subspecies of tiger found primarily in India and Bangladesh, known for its distinctive orange coat with black stripes.
Example
The Royal Bengal Tiger is an iconic species of the Sundarbans.
皇家孟加拉虎是孙德班的标志性物种。
C1 verb /ˈrɛzəneɪt/

resonate

共鸣
Meaning
To produce or be filled with a deep, full, and reverberating sound; to evoke a feeling or memory.
Example
Her words resonated with the audience.
她的话在听众中产生了共鸣。
C1 noun /rɪˈpraɪ.zəl/

Reprisal

报复
Meaning
an act of retaliation; revenge taken for an injury or wrong
Example
The attack was carried out as a reprisal for the earlier bombing.
此次攻击是作为对早期爆炸事件的报复而进行的。
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。
C1 adjective, noun /rɪˈsiːvəbl/

receivable

应收款项
Meaning
Money that is owed to a company and is expected to be paid.
Example
The company's receivables increased significantly this quarter.
公司的应收账款在本季度大幅增加。
C1 noun /rɪˌtæl.iˈeɪ.ʃən/

Retaliation

报复
Meaning
the action of returning a military attack; counterattack; revenge for an injury or wrong
Example
The country threatened retaliation against any act of aggression.
该国威胁对任何侵略行为进行报复。
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。
C1 verb /rɪˈprɛs/

repress

Meaning
To restrain, suppress, or keep under control, especially emotions or desires.
Example
He tried to repress his anger during the meeting.
C1 adjective /rɪˈbel.jəs/

Rebellious

反叛的; 不服从的; 抵抗控制的;
Meaning
defying authority; resisting control; disobedient;
Example
The rebellious teenager refused to follow his parents' rules.
那个叛逆的青少年拒绝遵守父母的规则。
B1 preposition /rɪˈɡɑrdɪŋ/

regarding

关于
Meaning
concerning or relating to
Example
The decision regarding the meeting will be made tomorrow.
关于会议的决定将在明天做出。
C1 adjective /ˈreɡ.jʊ.lə.tər.i/

Regulatory

监管
Meaning
Having the power to control or govern something through rules and regulations.
Example
The government enforces regulatory policies for financial stability.
政府执行金融稳定的监管政策。
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。
A1 noun, adjective, adverb /raɪt/

right

权利
Meaning
something that is morally good, fair, or just; or a legal/entitled claim
Example
Everyone has the right to free speech.
每个人都有言论自由的权利。
A1 adjective /raʊnd/

round

圆形的
Meaning
having a circular shape; shaped like a sphere or disk
Example
The table was round and had a smooth surface.
桌子是圆形的，表面光滑。
C1 adjective /rɪˈtaɪərɪŋ/

retiring

害羞
Meaning
Shy and reserved; avoiding social contact.
Example
She is a quiet, retiring woman who avoids attention.
她是一个安静、害羞的女人，避免引起注意。
C1 adjective /ˈrʌs.tɪk/

Rustic

简单而不复杂；与乡村地区相关
Meaning
simple and unsophisticated; relating to rural areas
Example
The rustic cottage had wooden beams and a thatched roof.
那座乡村小屋有木梁和茅草屋顶。
C1 verb /ˈrɛplɪkeɪt/

replicate

复制
Meaning
to copy, reproduce, or duplicate something exactly
Example
The scientist tried to replicate the experiment for accuracy.
科学家尝试复制实验以确保准确性。
C1 noun /ˈroʊz ˈwɔː.tər/

Rose-water

玫瑰水
Meaning
a flavored water made by steeping rose petals in water, used in cooking and cosmetics
Example
She added a few drops of rose-water to the dessert.
她在甜点中加入了几滴玫瑰水。
B2 noun /rɪˈfreʃ.mənt/

Refreshment

茶点
Meaning
food and drink that is served as a light meal; something that refreshes
Example
We served light refreshments after the meeting.
我们在会议后提供了轻便的茶点。
C1 verb /rɪˈɡrɛs/

regress

Meaning
To return to a former or less developed state.
Example
Without proper guidance, the child's progress began to regress.
A1 noun ˈræbɪt

rabbit

兔子
Meaning
A small mammal with long ears, long hind legs, and a short tail
Example
The rabbit ran quickly into the forest.
兔子快速地跑进了森林。
C1 noun /ˈrɛtrəsˌpɛkt/

retrospect

回顾
Meaning
the act of looking back on or reviewing past events
Example
In retrospect, the decision seemed unwise.
回顾来看，那个决定似乎不明智。
B2 noun /ˈreɪ.zɪnz/

Raisins

葡萄干
Meaning
dried grapes, often used in cooking and baking
Example
She added raisins to the oatmeal cookies for extra sweetness.
她在燕麦饼干中加入了葡萄干，以增加甜味。
B2 adjective /ˈrɪdʒ.ɪd/

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 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 /ˈrɒbəɹi/

robbery

抢劫
Meaning
the crime of stealing from someone or somewhere using force or threat
Example
The police are investigating the robbery at the local store.
警方正在调查当地商店的抢劫事件。
C1 noun ˈredʒ.ɪ.strɑːr

registrar

注册员
Meaning
An official responsible for keeping records or registers.
Example
The registrar oversees all administrative tasks.
注册员负责所有行政任务的监督。
C1 noun /ˈræp.tʃər/

rapture

狂喜, 欣喜若狂
Meaning
A feeling of intense joy, delight, or ecstasy.
Example
She listened to the music in rapture.
她沉浸在音乐中，陶醉其中。
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。
B1 noun /rɪsk/

Risk

风险
Meaning
a situation involving exposure to danger; the possibility of something bad happening
Example
Taking this investment carries a high risk of losing money.
进行这项投资存在高风险可能会损失资金。
A1 verb /rʌn/

run

跑步
Meaning
to move quickly on foot; to operate or function
Example
I run every morning for exercise.
我每天早上跑步锻炼。
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。
C2 adjective /ˈrævənɪŋ/

ravening

饥饿和贪婪
Meaning
Extremely hungry and greedy; voracious.
Example
The ravening wolves circled the camp.
饥饿的狼包围了营地。
B2 noun, verb /rɪər/

rear

后面 / 抚养
Meaning
the back part of something; to bring up or raise children or animals
Example
The mother cat reared her kittens in a quiet corner.
母猫在安静的角落里抚养她的猫仔。
C1 noun /rɪˈvɜːrʒən/

reversion

逆转
Meaning
the act of returning to a previous state or condition
Example
The new policy marked a reversion to traditional methods.
新政策标志着回归传统方法。
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。
C1 noun /ˈrɛzɪn/

resin

树脂
Meaning
a sticky organic substance, usually secreted by plants, often used in varnishes or plastics
Example
The craftsman used natural resin to make the sculpture shine.
工匠用天然树脂使雕塑闪闪发光。