repeal
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C1 verb /rɪˈpiːl/

repeal

Meaning
To officially cancel or revoke a law or decision.
Example
The government decided to repeal the outdated law.
C1 verb /ˈrævɪdʒ/

ravage

摧毁
Meaning
to cause severe and extensive damage or destruction
Example
The hurricane ravaged the coastal villages.
飓风摧毁了沿海村庄。
C1 noun /riːk/

Reek

有臭味; 给人强烈的不愉快或不想要的印象
Meaning
to have a very unpleasant smell; to give a strong impression of something unpleasant or undesirable
Example
The garbage can reeks of rotten food.
垃圾桶有腐烂食物的臭味。
C1 verb /rɪˈbʌt/

rebut

反驳
Meaning
to argue against or prove wrong; to refute
Example
The lawyer rebutted the false accusations with strong evidence.
律师用有力的证据反驳了虚假的指控。
C1 noun /ˌrɛmɪˈnɪsəns/

reminiscence

回忆
Meaning
a story or memory about past events
Example
He shared a reminiscence of his childhood days in the village.
他分享了他在村庄的童年时光的回忆。
B2 verb /rɪˈstreɪn/

restrain

抑制
Meaning
to hold back or control; to limit or restrict
Example
Please restrain your dog.
请控制你的狗。
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。
A1 noun /ruːm/

room

房间
Meaning
A space within a building enclosed by walls, floor, and ceiling
Example
She decorated her room with bright colors.
她用明亮的颜色装饰了她的房间。
C1 verb /ˌriːˈvaɪ.t̬əl.aɪz/

revitalize

重振
Meaning
To restore energy and effectiveness to something.
Example
The new policies aim to revitalize the economy.
新政策旨在重振经济。
C1 noun /roʊz ˈber.i/

Rose berry

玫瑰莓
Meaning
a type of berry with rose-like characteristics or flavor
Example
The rose berry has a delicate floral taste that reminds me of roses.
玫瑰莓具有细腻的花香口感，让我想起玫瑰花。
C1 noun/verb /rɪˈlæps/

relapse

复发
Meaning
to return to a worse condition, especially after improvement; a deterioration after recovery
Example
After months of progress, he suffered a relapse.
经过几个月的进展后，他遭遇了复发。
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。
C1 verb /ˌriːˈtʌtʃ/

retouch

修饰
Meaning
To improve or repair a picture, photograph, or image by making small changes.
Example
The photographer retouched the image to remove blemishes.
摄影师对图片进行了修饰以去除瑕疵。
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。
C2 noun /ˌræproʊʃˈmɑːn/

rapprochement

关系恢复
Meaning
The establishment or resumption of harmonious relations.
Example
The two countries signed an agreement that marked a new rapprochement.
两个国家签署了一项协议，标志着新的关系恢复。
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。
A1 adjective /red/

Red

红色
Meaning
having the color of blood or fire; of the color red
Example
She wore a beautiful red dress to the party.
她穿了一件漂亮的红色裙子参加派对。
C1 adjective /rɪˈstreɪnd/

restrained

克制的
Meaning
characterized by reserve or self-control; held back
Example
Her restrained reaction surprised everyone.
她克制的反应让所有人都感到惊讶。
C2 noun /rɪˈkɒɡnɪzəns/

recognizance

法律义务
Meaning
A legal obligation or bond entered into before a court, especially to ensure future appearance.
Example
He was released on his own recognizance.
他在自己的法律义务下被释放。
C2 verb /ˌriː.kəˈnɔɪ.tər/

reconnoiter

侦察
Meaning
to make a preliminary inspection or survey, especially of an area for military or strategic purposes
Example
The soldiers reconnoitered the area before advancing.
士兵们在前进前侦察了该区域。
A1 adjective /ˈrɛd.i/

ready

准备
Meaning
Prepared or available for use or action.
Example
She was ready to leave for the airport.
她准备好去机场了。
B2 adjective rɪˈnaʊnd

renowned

著名
Meaning
Known or talked about by many people; famous.
Example
The renowned scientist led the reform panel.
著名的科学家领导了改革小组。
C1 noun /ˈrʌfiən/

Ruffian

流氓; 暴力的人;
Meaning
a violent person, especially one involved in crime; a brutal or lawless person
Example
The ruffian threatened the shopkeeper for money.
流氓威胁店主要钱。
C1 adjective /rɪˈpʌl.sɪv/

Repulsive

令人反感的; 令人厌恶的; 引起强烈反感的
Meaning
extremely unpleasant; causing strong dislike or disgust
Example
The smell of rotten eggs was absolutely repulsive.
腐烂鸡蛋的气味完全令人反感。
A2 verb /rɪˈlæks/

relax

放松
Meaning
to make or become less tense or anxious; to rest
Example
After a long day, she likes to relax with a good book.
经过一天的劳累，她喜欢拿一本好书放松一下。
B1 noun ruːlz ənd ˌrɛɡjʊˈleɪʃənz

rules and regulations

规则和规定
Meaning
Official orders and laws that control how something is done.
Example
Rules and regulations alone cannot change attitudes.
单靠规则和规定无法改变态度。
B2 noun ˌrɛvəˈluːʃən

revolution

革命
Meaning
A forcible overthrow of a government or social order, in favor of a new system.
Example
The story is set during the French Revolution.
故事发生在法国大革命期间。
C2 adjective /rɪˈfræɡəbəl/

refragable

可反驳的
Meaning
Capable of being refuted or disproved.
Example
His argument was weak and easily refragable.
他的论点薄弱，容易被驳倒。
C1 verb /rɪˈklaɪn/

recline

靠着
Meaning
To lean or lie back in a relaxed position.
Example
She reclined on the sofa with a book.
她靠在沙发上看书。
C1 adjective /rɪˈpɛlənt/

repellent

驱虫剂
Meaning
Able to drive away something, especially insects or unpleasant things; causing disgust or distaste.
Example
This cream is highly effective as a mosquito repellent.
这款乳霜在防蚊方面非常有效。
C1 verb /rɪˈsɪprəˌkeɪt/

reciprocate

回应
Meaning
To respond to an action or gesture by making a corresponding one.
Example
She smiled at him, and he reciprocated with a warm hug.
她对他微笑，他以温暖的拥抱回应。
A2 verb /reɪz/

raise

举起 / 提高
Meaning
To lift or move something to a higher position; to increase; to bring up.
Example
She raised her hand to ask a question.
她举起手来提问。
A2 noun /ruːf/

roof

屋顶
Meaning
the top covering of a building or vehicle
Example
The roof of the house needs to be repaired.
房子的屋顶需要修理。
C1 verb /ˈrætɪfaɪ/

ratify

批准
Meaning
to approve or confirm something officially, usually by law or formal consent
Example
The government ratified the trade agreement.
政府批准了贸易协议。
B1 adverb /ˈriː.zən.ə.bli/

Reasonably

合理地; 合适地;
Meaning
in a sensible way; fairly; to a moderate degree
Example
The hotel room was reasonably priced for the location.
酒店房间根据位置的合理定价。
C2 noun /rɪˈpoʊst/

riposte

犀利的反应
Meaning
a quick and clever reply to criticism or an insult
Example
Her sharp riposte left everyone in silence.
她尖锐的反应让所有人都安静了。
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。
C2 verb /rɪˈvaɪl/

revile

谴责
Meaning
to criticize in an abusive or angrily insulting manner
Example
The politician was reviled by the public for his corruption.
政治家因腐败而被公众谴责。
C2 noun /ˈrɛdʒɪsaɪd/

regicide

弑君
Meaning
the act of killing a king
Example
The conspirators were executed for committing regicide.
阴谋者因实施弑君而被处决。
B1 noun /raɪs ˈkʊkər/

Rice cooker

电饭煲
Meaning
an electric appliance designed to cook rice automatically
Example
The rice cooker automatically switches off when the rice is perfectly cooked.
当米饭煮得刚好时，电饭煲会自动关闭。
B1 verb /rɪˈflekt/

reflect

反射
Meaning
to think deeply about; to mirror back light or image
Example
The mirror reflects her beautiful face.
镜子反射出她美丽的脸。
A2 adjective /ˈreɡ.jə.lər/

Regular

规律的
Meaning
happening at fixed intervals; consistent; normal; frequent
Example
She goes for regular exercise every morning at 6 AM.
她每天早上六点进行规律的锻炼。
C1 adjective /ˈreɪ.si/

racy

刺激的
Meaning
Lively, entertaining, or slightly shocking (especially in a sexual way).
Example
The novel was full of racy dialogues.
这部小说充满了刺激的对话。
C1 adjective /rɪˈpen.tənt/

Repentant

悔过的; 懊悔的; 后悔的
Meaning
feeling or expressing sincere regret and remorse; sorry for one's actions
Example
The repentant thief returned the stolen money.
悔过的窃贼归还了被盗的钱。
B2 adverb /ruːˈtiːnli/

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。
C2 verb /rɪˈpaɪn/

repine

感到不满
Meaning
To feel or express discontent or to long for something.
Example
She did not repine at her misfortune but worked harder to improve her life.
她没有为自己的不幸而感到悲伤，而是更加努力地工作来改善她的生活。
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。
C1 adjective /ˈriːɡəl/

regal

皇家
Meaning
Resembling or fit for a king; majestic or royal.
Example
The queen entered the hall with a regal presence.
女王带着皇家气质走进大厅。
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。
B1 noun /rɪˈkwɛst/

request

Meaning
a formal or polite demand for something
Example
She made a request for additional time to complete the project.
C2 noun /rɪˌnʌnsiˈeɪʃən/

renunciation

放弃
Meaning
the formal rejection or giving up of something, usually a belief, claim, or way of life
Example
His renunciation of worldly pleasures impressed the monks.
他对世俗享乐的放弃让僧侣们印象深刻。
C1 noun /rəˈviːn/

ravine

峡谷
Meaning
A deep, narrow valley with steep sides.
Example
The river carved a deep ravine through the mountains.
河流在山脉中切割出一条深深的峡谷。
B2 noun /rɪˈlaɪ.əns/

Reliance

依赖
Meaning
the state of depending on something or someone for support or help
Example
His reliance on technology is concerning.
他对技术的依赖令人担忧。
A2 verb /riːtʃ/

reach

到达
Meaning
to arrive at a destination; to extend one's arm to touch something
Example
We will reach the station in ten minutes.
我们将在十分钟内到达车站。
C1 verb rɪˈplɛn.ɪʃ

replenish

补充
Meaning
Fill something up again.
Example
Drinking water helps replenish lost fluids in the body.
喝水有助于补充身体失去的液体。
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 /ˈræfɪʃ/

raffish

不拘一格且稍微不太体面但又很有吸引力
Meaning
unconventional and slightly disreputable but attractive
Example
He had a raffish charm that made him popular in the city.
他有一种迷人的雷菲什魅力，使他在城市里非常受欢迎。
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。
B1 noun /ˈrɛntəl/

rental

租赁
Meaning
an arrangement in which something is rented, or the amount paid for renting
Example
The car rental was more expensive than we expected.
汽车租赁比我们预期的要贵。
B1 noun /rɪˈsep.ʃən/

Reception

接待; 欢迎; 活动;
Meaning
the action of receiving something or someone; a formal social occasion held to welcome someone
Example
The wedding reception was held at a beautiful hotel.
婚礼接待在一家漂亮的酒店举行。
B2 noun /rɪˈmeɪnz/

remains

残留物
Meaning
the parts, pieces, or substances that are left after the rest has been used or removed
Example
The remains of the meal were left on the table.
餐后剩余的食物被留在桌上。
C1 noun /rɪˈliːf treɪn/

Relief Train

救援列车
Meaning
a train that carries emergency supplies and aid to disaster-affected areas
Example
The relief train arrived with food and medical supplies for the flood victims.
救援列车带着食物和医疗物资抵达洪水灾区。
B1 noun /ˈrezɪdənt/

Resident

居民
Meaning
a person who lives somewhere permanently or on a long-term basis; living in a particular place
Example
She has been a resident of this city for over ten years.
她已经是这个城市的居民超过十年了。
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。
B1 noun /rɪˈkwaɪə(r)mənt/

requirement

要求
Meaning
something that is necessary or demanded
Example
The job has specific educational requirements.
这项工作有特定的教育要求。
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 /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。
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 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 /rɪˈdʒɔɪs/

rejoice

欢欣
Meaning
to feel or show great joy; to celebrate
Example
The family rejoices at the good news.
这个家庭因好消息而欢欣鼓舞。
C1 verb /ræsp/

rasp

Meaning
to speak in a rough, harsh voice or to scrape with a coarse sound
Example
He rasped out a warning before collapsing.
C1 noun /rɪˈpreʃən/

Repression

压制
Meaning
the action of subduing someone or something by force; the restraint, prevention, or inhibition of a feeling, impulse, etc.
Example
The government's repression of free speech sparked widespread protests.
政府对言论自由的压制引发了广泛的抗议。
C1 verb /ˌriːɪnˈtɪɡreɪt/

reintegrate

重新融入
Meaning
To bring someone or something back into a group or society after being separated.
Example
The program helps prisoners reintegrate into society.
该程序帮助囚犯重新融入社会。
C1 noun /ˈrəʊ.bɒt əˈsɪs.tɪd prəˈsiː.dʒərz/

robot-assisted procedures

机器人辅助程序
Meaning
Medical operations performed with the help of robotic systems to enhance precision and control.
Example
Robot-assisted procedures reduce human error.
机器人辅助程序减少了人为错误。
B1 adjective /rɪˈtaɪərd/

Retired

退休
Meaning
having left one's job and ceased to work; withdrawn from activity
Example
My retired grandfather enjoys gardening in his free time.
我的退休祖父喜欢在空闲时间种花。
C1 noun /rɪˈkɒnɪsəns/

reconnaissance

侦察
Meaning
A survey or exploration, especially for military or strategic purposes.
Example
The soldiers conducted a reconnaissance of the enemy camp.
士兵们进行了敌营的侦察。
C2 adjective /ˈrɛkriənt/

recreant

懦弱的, 背叛的
Meaning
cowardly or unfaithful to duty
Example
The recreant soldier abandoned his post in fear.
那名懦弱的士兵因恐惧而放弃了他的岗位。
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。
C1 noun /rɪˌsɛptɪˈvɪti/

receptivity

接受能力
Meaning
The ability or willingness to receive something, especially signals or stimuli.
Example
Her receptivity to new ideas helped improve the project.
她对新思想的接受能力帮助改善了项目。
B2 adverb /ˈred.ɪ.li/

Readily

乐意地; 容易地; 毫不犹豫
Meaning
willingly; easily; without hesitation
Example
She readily agreed to help with the project.
她乐意地同意帮助项目。
C1 noun /ˈrɑːstər/

roster

名单
Meaning
A list or plan showing people’s duties or times when they are scheduled.
Example
The manager updated the staff roster for next week.
经理更新了下周的员工名单。
C2 noun /rʌmp/

Rump

臀部; 屁股; 背部下方
Meaning
the hindquarters or buttocks; the lower back area
Example
The horse injured its rump during the fall.
那匹马在跌倒时伤到了它的臀部。
C1 verb /rɪˈfjuːt/

refute

驳斥
Meaning
To prove a statement, argument, or theory to be false or invalid.
Example
The lawyer refuted the witness's testimony with solid evidence.
律师用确凿的证据驳斥了证人的证词。
B2 noun/verb /rɪˈmɑːrk/

remark

评论
Meaning
something that is said; a comment
Example
She made a remark about the weather.
她对天气做了一个评论。
C2 adjective /raɪˈpɛə.ri.ən/

riparian

位于河流或其他水道的岸边或与之相关的
Meaning
Relating to or situated on the banks of a river or other watercourse.
Example
Riparian vegetation helps prevent soil erosion along rivers.
河岸植被有助于防止河流沿岸的土壤侵蚀。
B1 noun /rɪˈwɔːd/

reward

奖励
Meaning
something given in recognition of service, effort, or achievement
Example
He received a reward for returning the lost wallet.
他因归还丢失的钱包而获得奖励。
B1 noun rəʊlz

Roles

角色
Meaning
A person's or thing's function in a particular situation.
Example
Defined roles improve team performance.
定义的角色改善团队表现。
A2 adjective /rɪˈspɒn.sə.bəl/

Responsible

负责任的；有义务的；可靠且值得信赖的
Meaning
accountable; having duties; reliable and trustworthy
Example
Parents are responsible for their children's education and well-being.
父母对孩子的教育和福利负责。
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。
C1 noun /rɪˌmjuː.nəˈreɪ.ʃən/

Remuneration

报酬; 薪酬; 奖金
Meaning
money paid for work or services; compensation or reward
Example
The job offers excellent remuneration and benefits.
这份工作提供了优厚的报酬和福利。
C2 adjective /ˈrɛstɪv/

restive

不安定的
Meaning
unable to stay still or silent; restless and impatient
Example
The crowd grew restive as they waited for the concert to begin.
人群在等待音乐会开始时变得不安定。
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 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。
C2 noun /raɪm/

rime

霜
Meaning
frost formed on cold surfaces by freezing water vapor
Example
The trees were covered with a white rime after the cold night.
树木在寒冷的夜晚后被白色霜覆盖。
C2 adjective /roʊn/

roan

罗恩马
Meaning
denoting an animal, especially a horse, having a coat of mixed colors, typically reddish-brown and white
Example
The rider mounted a roan horse with a speckled coat.
骑手骑上了一匹罗恩马，身上有斑点的毛皮。
C1 adjective /ˈrɛtɪsənt/

reticent

沉默寡言
Meaning
not revealing one's thoughts or feelings readily; reserved
Example
She was reticent about her personal life.
她对自己的个人生活保持沉默。
C1 noun /ˈriːpər/

reaper

割草和收获作物的人或机器
Meaning
a person or machine that cuts and gathers crops
Example
The reaper moved slowly through the golden fields.
瑞珀缓缓地穿过金色的田野。
A2 verb /raɪz/

rise

上升
Meaning
to move upward; to get up from bed; to increase
Example
The sun rises in the east.
太阳从东方升起。
C1 verb /rɪˈsiːd/

recede

退去
Meaning
To move back or further away from a previous position.
Example
The floodwaters began to recede after the heavy rain stopped.
暴雨停止后，洪水开始退去。
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。
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 adjective /ˌrez.ɪˈden.ʃəl/

residential

住宅
Meaning
Designed for people to live in.
Example
The institution was fully residential.
该机构是完全住宅性质的。
C1 verb/noun /ˈrɛlɪʃ/

relish

享受 / 调味料
Meaning
to greatly enjoy; also a condiment or sauce
Example
She relished the opportunity to travel abroad.
她很高兴有机会出国旅行。
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 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。
C1 noun /rɪˈmɪt.əns/

Remittance

汇款
Meaning
A sum of money sent in payment or as a gift.
Example
The country's economy benefits from expatriate remittance.
该国的经济从侨汇中受益。
C1 verb rɪˈlɪŋ.kwɪʃ

relinquish

放弃
Meaning
To give up any authority, responsibility, or property.
Example
He decided to relinquish his position as CEO.
他决定放弃CEO职位。
A2 verb /rɪˈpleɪs/

replace

替换
Meaning
to take the place of something or someone; to put something new in place of something old
Example
He decided to replace the broken lamp with a new one.
他决定用一盏新的替代坏掉的灯。
C2 noun /rɪˈfræk.tər/

refractor

折射望远镜
Meaning
A type of telescope that uses lenses to focus light.
Example
Refractor telescopes use lenses to focus light.
折射望远镜使用透镜聚焦光线。
C1 adjective /ˈraɪ.tʃəs/

Righteous

正义的; 公正的; 有道德的
Meaning
morally right or justifiable; virtuous; having strong moral principles
Example
She felt righteous anger at the unfair treatment of workers.
她对工人们的不公正待遇感到正义的愤怒。
C1 noun /ˈrɛspɪt/

respite

喘息
Meaning
A short period of rest or relief from something difficult or unpleasant.
Example
The weekend provided a welcome respite from work.
周末提供了工作上的一个受欢迎的休息。
C1 noun /ˈruːdɪmənt/

rudiment

基础
Meaning
A basic principle, element, or fundamental part of something.
Example
He learned the rudiments of music before joining the band.
他在加入乐队之前学习了音乐的基础知识。
C2 noun /rɪˈsɪdɪvɪst/

recidivist

重犯
Meaning
A person who repeatedly commits crimes, especially after having been punished.
Example
The police identified him as a recidivist who had been arrested several times before.
警方将他确定为一个重犯，他之前曾被多次逮捕。
C1 verb /rɪˈsʌsɪteɪt/

resuscitate

Meaning
to revive someone from unconsciousness or apparent death
Example
The doctors tried to resuscitate the patient after the heart attack.
C1 adjective rɪˈsɛʃ.ən.er.i

recessionary

衰退的
Meaning
Relating to or characterized by economic recession.
Example
Governments introduce policies to counter recessionary effects.
政府推出政策来应对衰退效应。
C1 adjective /ˌret.rəˈspek.tɪv/

Retrospective

回顾的
Meaning
looking back on or dealing with past events or situations
Example
The museum held a retrospective exhibition of the artist's work.
博物馆举办了这位艺术家的回顾展。
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。
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。
C2 noun /ruːθ/

ruth

同情
Meaning
A feeling of pity, compassion, or sorrow.
Example
He felt no ruth for the people he had betrayed.
他对他曾经背叛的人没有任何同情。
B2 noun /roʊˈteɪʃən/

Rotation

旋转; 转动; 自转
Meaning
the action of rotating around an axis or center; a single turn
Example
The Earth's rotation takes 24 hours to complete.
地球的自转需要24小时才能完成。
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。