regulation
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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。
B1 noun /rɪˈzɔː.sɪz/

resources

资源
Meaning
A stock or supply of money, materials, staff, and other assets.
Example
The region was rich in herbal resources.
该地区富含草本资源。
B2 verb /rɪˈtriːv/

retrieve

找回
Meaning
to get something back that was lost or taken; to recover
Example
She managed to retrieve her lost phone from the taxi.
她成功地从出租车中找回了她丢失的手机。
C1 noun/verb /ˈrɛprɪˌmænd/

reprimand

Meaning
A formal expression of disapproval; to scold or criticize someone officially.
Example
The teacher reprimanded the student for being late.
C1 noun /ˈræʃən/

ration

配给
Meaning
a fixed amount of something, especially food, officially allowed to each person
Example
During the war, each family received a weekly ration of rice.
在战争期间，每个家庭每周获得固定的米饭配给。
C2 adjective /rɪˈdjuːsəbl̩/

reducible

Meaning
capable of being simplified, lessened, or made smaller
Example
The problem is complex but reducible to a few basic principles.
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。
B2 noun/adjective /rɪˈpʌblɪkən/

republican

共和党人
Meaning
a member or supporter of a republican political party or system
Example
The republican candidate won the election.
共和党候选人赢得了选举。
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 /raʊz/

rouse

唤醒
Meaning
To awaken from sleep or to stir into action.
Example
The loud alarm roused him from his deep sleep.
响亮的警报把他从深度睡眠中唤醒。
A2 noun rɪˈsɜːtʃ

research

研究
Meaning
The systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.
Example
Research on radio waves began earlier in India.
关于无线电波的研究在印度早期就开始了。
B1 adjective /ˈrel.ə.vənt/

Relevant

相关的
Meaning
closely connected or appropriate to what is being discussed; pertinent
Example
Please provide only relevant information for this discussion.
请提供仅与本次讨论相关的信息。
C2 verb /ˈreə.rɪ.faɪ/

rarefy

稀释, 精炼
Meaning
To make something less dense or more refined.
Example
The air rarefies as you climb higher into the mountains.
随着你爬得更高，空气变得更稀薄。
C1 adjective /ˈrævənəs/

ravenous

饥饿
Meaning
Extremely hungry; famished.
Example
After the long hike, she was ravenous and ate quickly.
长时间的徒步旅行后，她饿极了，吃得很快。
B2 verb /rɪˈstrɪkt/

restrict

限制
Meaning
To limit the size, amount, or range of something.
Example
The government decided to restrict the use of plastic bags.
政府决定限制塑料袋的使用。
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。
A1 adjective /ˈreɪ.di.əʊ/

radio

收音机
Meaning
Relating to radio waves or broadcasting.
Example
FAST is the largest radio telescope in the world.
FAST是世界上最大的射电望远镜。
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。
C1 noun /rɪˈflɛktər/

reflector

反射器
Meaning
A surface or device that reflects light, heat, or sound, often used to direct beams or improve visibility.
Example
The cyclist attached a red reflector to the back of his bike for safety.
骑自行车的人将一个红色反射器固定在他自行车的后面以确保安全。
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。
C1 verb /rɪˈkɔɪl/

recoil

后退
Meaning
To suddenly spring back in fear, horror, or from force such as a gun's kickback.
Example
She recoiled at the sight of the snake.
她看到蛇时吓得后退。
C1 noun /ˌres.ɪˈteɪ.ʃən/

Recitation

朗诵
Meaning
the action of reciting or repeating aloud from memory
Example
The poetry recitation contest was held in the auditorium.
诗歌朗诵比赛在礼堂举行。
C2 verb (archaic/rare) /rɛk/

reck

在乎
Meaning
To care about or be concerned with (something); to have regard for.
Example
He does not reck the dangers of his actions.
他不在乎自己行为的危险。
B1 noun rɪˈflɛkʃən

reflection

反射
Meaning
Serious thought or consideration about something.
Example
The reflection of the past filled his heart with sadness.
过去的反射使他的心充满了悲伤。
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。
C2 verb /rɪˈsɪnd/

rescind

撤销
Meaning
to revoke, cancel, or repeal a law, order, or agreement
Example
The company decided to rescind the job offer.
公司决定撤销工作机会。
C2 adjective /rɪˈmiːdiəbl/

remediable

可修复的
Meaning
capable of being corrected or cured
Example
The mistake was serious but still remediable.
这个错误很严重，但仍然是可修复的。
C1 verb /rɪˈpjuː.di.eɪt/

repudiate

拒绝
Meaning
to refuse to accept, recognize, or support something
Example
He repudiated the claim that he was involved in the scandal.
他拒绝了他参与丑闻的说法。
C1 adjective /ˈrɪvɪtɪŋ/

riveting

引人入胜
Meaning
extremely interesting; holding the complete attention
Example
The movie was so riveting that nobody looked away.
这部电影如此引人入胜，以至于没有人移开视线。
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 /rɪˈfrækʃən/

refraction

折射
Meaning
The bending of light, sound, or other waves when they pass from one medium to another of different density.
Example
The refraction of light in water makes objects appear bent.
水中的光折射使物体看起来弯曲。
C1 noun /ˈraɪtʃəsnəs/

righteousness

正义
Meaning
the quality of being morally right or justifiable
Example
His life was dedicated to righteousness and truth.
他的一生致力于正义和真理。
B1 verb /rɑːb/

rob

抢劫
Meaning
to steal money or property from a person or place; to commit robbery
Example
The thief tried to rob the bank last night.
小偷昨晚试图抢劫银行。
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。
B1 noun /reɪ/

ray

光线
Meaning
a narrow beam of light, heat, or radiation
Example
A ray of sunlight broke through the clouds.
一束阳光穿透了云层。
C2 noun /ˌriːkruːˈdɛsəns/

recrudescence

复发
Meaning
a new outbreak or revival of something that had subsided, especially an undesirable condition
Example
Health officials warned of a recrudescence of measles in several districts.
卫生官员警告多个地区麻疹的复发。
C1 noun /rɪˈfɜːrər/

referrer

推荐人
Meaning
a person who directs someone to another person or service
Example
The referrer earned a bonus for recommending a new client.
推荐人因推荐新客户而获得了奖金。
A1 noun /ˈrɪv.ər/

River

河流
Meaning
a large natural stream of water flowing in a channel to the sea, a lake, or another river
Example
The river flows through the valley and into the ocean.
河流穿过山谷并流入大海。
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。
B1 noun riˈækʃən

reaction

反应
Meaning
An action performed or a feeling experienced in response to a situation or event.
Example
The arrests triggered a reaction.
逮捕引发了反应。
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。
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。
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。
C2 noun /ræŋˈɡuːn ˈkriːpər/

Rangoon creeper

缅甸爬山虎
Meaning
A climbing vine with fragrant flowers that change color from white to pink to red
Example
The Rangoon creeper covered the entire fence with its sweet-smelling flowers.
缅甸爬山虎用它甜美的花朵覆盖了整个篱笆。
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 verb /ˌriːˈkæst/

recast

重新选择演员
Meaning
To present or change something in a different form or style.
Example
The director decided to recast the role with a younger actor.
导演决定用一位年轻演员重新安排这个角色。
B2 noun /raɪˈnɒs.ər.əs/

Rhinoceros

犀牛
Meaning
a large, heavy animal with thick skin and one or two horns on its nose
Example
The rhinoceros charged through the grassland.
犀牛冲过草原。
C1 noun/verb /rɪˈpoʊz/

repose

休息
Meaning
a state of rest, sleep, or tranquility; to rest or lie in a peaceful position
Example
After the long journey, she sought repose in the quiet garden.
长途旅行后，她在安静的花园里寻求休息。
C1 verb /rɪˈpiːl/

repeal

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

redundant

多余的
Meaning
Not or no longer needed or useful; superfluous.
Example
The report contained redundant information.
报告包含了多余的信息。
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。
C2 noun /ˈrʊkəri/

rookery

鸟类栖息地
Meaning
a place where rooks or other birds breed and nest in colonies
Example
We saw a rookery full of noisy birds near the forest.
我们看到一个充满吵闹鸟类的鸟类栖息地，靠近森林。
A2 noun /ruːlz/

rules

规则
Meaning
explicit principles or regulations governing conduct or procedure within a particular area of activity
Example
The teacher reminded the students to follow the classroom rules.
老师提醒学生遵守课堂规则。
C2 verb /ˈrʌstɪkeɪt/

rusticate

去乡村 / 从大学暂时开除
Meaning
To go to the countryside or to suspend someone from university.
Example
He decided to rusticate in the village to escape the busy city life.
他决定去乡村生活以逃避繁忙的城市生活。
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。
C2 adjective /ˈrɛkənˌdaɪt/ or /ˈrɛkəndaɪt/

recondite

鲜为人知或难以理解的
Meaning
Little known or difficult to understand.
Example
The professor’s lecture was full of recondite theories.
教授的讲座充满了深奥的理论。
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。
C2 noun /ˈræɡəmʌfɪn/

ragamuffin

破烂的孩子
Meaning
A person, typically a child, in ragged, dirty clothes.
Example
The little ragamuffin begged for food on the street.
那个小破烂的孩子在街上乞讨食物。
C1 noun /ˈrɛdʒɪmənt/

regiment

Meaning
A permanent unit of an army, typically commanded by a colonel and divided into several companies.
Example
The regiment marched proudly through the streets after returning from the mission.
C1 noun /ˈrɛvərəns/

reverence

崇敬
Meaning
deep respect for someone or something
Example
The students showed reverence to their teacher.
学生们向他们的老师表达了崇敬。
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。
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。
B1 verb /rɪˈlaɪ/

rely

依赖
Meaning
to depend on or trust someone or something
Example
I rely on my friends for support.
我依赖我的朋友寻求支持。
C2 adjective /ˈrɛpərəbəl/

reparable

可修复的
Meaning
able to be repaired or fixed
Example
The damage to the car was serious but still reparable.
汽车的损坏很严重，但仍然是可修复的。
B1 noun /ˈrʌbɪʃ/

Rubbish

垃圾; 无用的东西; 胡说
Meaning
waste material; refuse or litter; nonsense or worthless things
Example
Please throw the rubbish in the bin.
请把垃圾丢进垃圾桶。
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 noun /rɪˈspɒnsɪvnəs/

responsiveness

反应能力
Meaning
The quality of reacting quickly and positively
Example
The manager appreciated her responsiveness to customer feedback.
经理欣赏她对客户反馈的反应能力。
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。
C1 noun /rɪˈsaɪtl/

recital

独奏会
Meaning
A performance of music, dance, or poetry, usually by a soloist.
Example
She gave a piano recital at the concert hall.
她在音乐会中举办了钢琴独奏会。
C1 adjective /raɪf/

rife

普遍
Meaning
widespread or common, often in a negative sense
Example
Corruption was rife in the old government system.
腐败在旧政府体制中盛行。
C1 verb /rɪˈnɛɡ/

renege

违约
Meaning
to go back on a promise, agreement, or commitment
Example
The company reneged on its promise to increase wages.
公司违背了他们提高工资的承诺。
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 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。
C1 noun /ˈreɪ.biːz/

rabies

狂犬病
Meaning
A viral disease that causes inflammation of the brain in humans and other mammals, usually transmitted through animal bites.
Example
The dog was vaccinated against rabies.
狗已接种狂犬病疫苗。
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。
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。
C2 noun /ˈræŋ.kər/

rancor

怨恨
Meaning
A feeling of deep and bitter anger or resentment.
Example
There was a rancor between the two rivals that never faded.
这两位对手之间有一种怨恨，永远没有消失。
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。
A2 adjective /ˈrʌʃən/

russian

Meaning
relating to Russia, its people, or its language
Example
She is studying the Russian language at university.
C2 adjective /rɪˈkʌmbənt/

recumbent

躺着
Meaning
lying down or in a resting position
Example
He was found recumbent on the sofa after a long day.
他在长时间的一天后被发现躺在沙发上。
C1 noun rɪˈdɛmpʃən

redemption

救赎
Meaning
The action of saving or being saved from sin, error, or evil.
Example
The story highlights the theme of redemption.
这个故事突出了救赎的主题。
C2 adjective /rɪˈsplɛndənt/

resplendent

辉煌
Meaning
Shining brilliantly; dazzling in appearance or effect
Example
The bride looked resplendent in her wedding gown.
新娘穿着婚纱看起来光彩照人。
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。
C1 verb /ˈrɛlɪɡeɪt/

relegate

降级
Meaning
to assign to a lower rank, position, or category
Example
The manager decided to relegate the player to the bench.
经理决定将球员降级到替补席。
C1 noun /ˌrɛkwɪˈzɪʃən/

requisition

要求
Meaning
An official order laying claim to the use of property or materials; a formal demand or request.
Example
The manager submitted a requisition for new office supplies.
经理提交了新的办公室用品的要求。
C1 adjective /ˈrez.ə.luːt/

Resolute

坚决的；坚定的；不可动摇的
Meaning
determined; having a firm decision; unwavering
Example
She remained resolute in her decision to pursue her dreams.
她在追求梦想的决定中保持坚决。
C1 noun /rɪˈkɜr.əns/

Recurrence

复发
Meaning
the fact of something happening again; an instance of something happening again
Example
The doctor was concerned about the recurrence of the patient's symptoms.
医生对病人症状的复发感到担忧。
C2 noun /ˈrɛtɪnjuː/

retinue

随行人员
Meaning
A group of attendants or followers accompanying an important person.
Example
The king entered the hall followed by his retinue.
国王带着随行人员进入了大厅。
C1 verb rɪˈpel

repel

排斥
Meaning
To push away or force apart due to similar charges or properties.
Example
Protons repel each other.
质子相互排斥。
A1 verb /riːd/

read

读
Meaning
to look at written words and understand their meaning
Example
I read books before going to bed.
我在睡觉前读书。
C2 adjective /ˈræŋ.kər.əs/

rancorous

充满怨恨的
Meaning
Characterized by bitterness or resentment.
Example
Their rancorous debate lasted for hours.
他们充满怨恨的辩论持续了几个小时。
A2 noun ˈrɛlətɪvz

Relatives

亲戚
Meaning
A person connected by blood or marriage; a kinsman or kinswoman.
Example
Relatives can help you build a complete family tree.
亲戚们可以帮助你建立完整的家族树。
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 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。
B2 verb /ˈrɛnəˌveɪt/

renovate

翻新
Meaning
to restore something old to a good state or to improve it
Example
They decided to renovate the old house before moving in.
他们决定在搬进之前修复旧房子。
C1 noun /ˈrɛnɪˌɡeɪd/

renegade

叛徒
Meaning
a person who deserts or betrays an organization, country, or principles
Example
He was labeled a renegade after leaving the party and criticizing its policies.
他在离开党派并批评其政策后被贴上了叛徒的标签。
C1 verb /ˈrʌsl/

rustle

沙沙作响
Meaning
To make a soft, light sound like leaves or paper moving.
Example
The leaves rustled gently in the evening breeze.
树叶在傍晚的微风中轻轻地沙沙作响。
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。
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。
C1 verb /riːl/

reel

跌倒 / 卷绕
Meaning
to lose balance and stagger; to wind or spin something onto a reel
Example
He reeled backward after being punched.
他被打后向后跌倒。
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 /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。
C1 verb /rɪˈtælieɪt/

retaliate

报复
Meaning
to make an attack in return for a similar attack
Example
The army retaliated after the enemy attack.
军队在敌人的攻击后进行了报复。
B2 verb /rɪˈnuː/

renew

Meaning
to make something new again or extend its period of validity
Example
I need to renew my passport before traveling.
C1 verb /ˌriːəˈfɜːrm/

reaffirm

重申
Meaning
To state again strongly; to confirm or strengthen a statement or belief.
Example
The president reaffirmed his commitment to education reform.
总统重申了他对教育改革的承诺。
A2 verb /rɪˈsiːv/

receive

接收
Meaning
to get or accept something given; to welcome
Example
She receives a gift from her friend.
她从朋友那里收到了一份礼物。
B1 adjective /rɪˈlɪdʒəs/

Religious

宗教的; 虔诚的; 精神的; 与宗教相关的;
Meaning
relating to or believing in a religion; devout; spiritual;
Example
He comes from a very religious family.
他来自一个非常宗教的家庭。
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。
C1 phrase ˈriː.dʒən.əl ˈfɔː.rəm

regional forum

地区论坛
Meaning
A meeting or conference where representatives from countries or organizations in a specific geographical area discuss issues of common interest.
Example
The Regional Forum discussed deforestation impacts.
地区论坛讨论了砍伐森林的影响。
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。
B2 noun /ˌreɡ.jʊˈlær.ɪ.ti/

Regularity

规律性
Meaning
the quality of being regular; occurring at fixed intervals or in a consistent pattern
Example
The regularity of his exercise routine helped him stay healthy.
他锻炼的规律性帮助他保持健康。
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。
C2 verb /ruː/

rue

后悔
Meaning
To feel regret or sorrow about something.
Example
She will rue the day she trusted him.
她将会后悔她信任他那一天。
A2 adverb /ˈrɑː.ðər/

Rather

宁愿; 而不是;
Meaning
to some extent; instead; preferably
Example
I would rather stay home than go to the party.
我宁愿待在家里，也不想去派对。
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 /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。
C2 adjective /rɪˈfræktəri/

refractory

反叛的
Meaning
Stubborn or resistant to control, authority, or treatment.
Example
The refractory child refused to follow the teacher's instructions.
这个反叛的孩子拒绝遵循老师的指示。
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。
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。
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。
A2 adjective /ˈriː.sənt/

Recent

最近的; 新的; 当前的;
Meaning
happening not long ago; new; current;
Example
The recent changes in weather patterns concern scientists.
最近天气模式的变化让科学家感到担忧。