retention
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英语 BN 孟加拉语 HI 印地语 ES 西班牙语 FR 法语 DE 德语 RU 俄语 ZH 中文 JA 日语
All Vocabulary Cards All Vocabularies
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。
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。
C2 adjective /ˈruːbɪkənd/

rubicund

红润的脸
Meaning
Having a healthy reddish complexion.
Example
The old man’s rubicund face showed he was in good health.
那位老人的红润脸庞显示他身体健康。
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。
B2 noun /ˌrɛfəˈriː/

referee

裁判
Meaning
a person who oversees a game or match to ensure the rules are followed
Example
The referee stopped the game after a foul.
裁判在犯规后暂停了比赛。
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 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。
C1 verb /ˌriːɪmˈbɜːrs/

reimburse

报销
Meaning
to pay back money to someone who has spent it or lost it
Example
The company reimbursed him for travel expenses.
公司为他报销了旅行费用。
C2 adjective /rɪˈprɛsəbl̩/

repressible

可抑制的
Meaning
Capable of being restrained or suppressed.
Example
The movement proved to be hardly repressible.
这个运动被证明几乎是可以抑制的。
A2 verb /ˈrɛkəɡnaɪz/

recognize

Meaning
To identify someone or something seen before; to acknowledge or accept.
Example
She did not recognize him in the crowd.
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。
B1 adjective ˈriː.dʒən.əl

regional

区域的
Meaning
Relating to or characteristic of a region.
Example
Regional hubs support localized industries.
区域中心支持本地行业。
C1 verb /rɪɡ/

rig

操控
Meaning
to manipulate or control something dishonestly; to set up equipment
Example
The election was rigged by corrupt officials.
选举被腐败官员操控了。
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。
B1 adverb /ˈruːdli/

Rudely

无礼地
Meaning
in an impolite or discourteous manner
Example
He rudely interrupted the speaker during the presentation.
他在演讲期间无礼地打断了发言者。
C1 adverb /ˈrɪdʒɪdli/

Rigidly

严格地; 不妥协地
Meaning
in a strict, inflexible manner; without compromise
Example
The rules are rigidly enforced in this institution.
这些规则在这个机构中被严格执行。
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。
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。
B2 adjective /rɪˈnjuː.ə.bəl/

renewable

可再生
Meaning
Able to be renewed or replaced naturally; not depleted when used.
Example
Renewable resources minimize environmental damage.
可再生资源减少环境损害。
C1 noun /roʊt/

rote

死记硬背
Meaning
mechanical or habitual repetition, often without understanding
Example
He learned the poem by rote without understanding its meaning.
他通过死记硬背学会了这首诗，但没有理解其含义。
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。
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。
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 /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。
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。
C1 verb /riˈɪtəreɪt/

reiterate

重申
Meaning
To say something again or repeatedly for emphasis or clarity.
Example
The teacher reiterated the importance of honesty.
老师重申了诚实的重要性。
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。
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。
C2 adjective /rɪˈfɛrəbəl/

referable

可参考的
Meaning
able to be related or directed to something
Example
The issue is referable to the new policy changes.
这个问题可以参考新的政策变化。
C1 adjective /rɪˈpres.ɪv/

Repressive

压制性的
Meaning
restraining freedom or preventing self-expression; oppressive
Example
The repressive government banned all forms of protest.
压制性的政府禁止了所有形式的抗议。
B1 adjective, noun /ˈroʊmən/

roman

罗马的 / 古罗马公民
Meaning
relating to Rome or its people; a citizen of ancient Rome
Example
The Roman Empire influenced much of modern civilization.
罗马帝国影响了现代文明的许多方面。
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 /ˈrɪɡməˌroʊl/

rigmarole

麻烦事
Meaning
a long, complicated, and confusing process or story
Example
Getting a visa was such a rigmarole of paperwork and interviews.
获得签证是一个繁琐的文书工作和面试过程。
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。
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。
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。
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 /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。
C1 verb /rɪˈtrækt/

retract

Meaning
to withdraw a statement, promise, or part of the body; to pull back
Example
The company retracted its earlier statement after realizing the error.
C2 adjective /rəˈkoʊkoʊ/

rococo

洛可可
Meaning
characterized by ornate detail and elaborate decoration, especially in art, architecture, and design
Example
The palace was decorated in a lavish rococo style.
宫殿以奢华的洛可可风格装饰。
B1 noun /rɪˈleɪ.ʃən/

Relation

关系; 亲戚
Meaning
the way in which two or more people or things are connected; a family member
Example
They have a strong business relation that has lasted for years.
他们有一个强大的商业关系，已经持续了多年。
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 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 /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。
C1 noun /ˈrem.nənt/

Remnant

残余
Meaning
a small remaining quantity of something; a piece of cloth left over after the main piece has been used
Example
Only a remnant of the ancient wall remains.
古老的墙只剩下残余。
C1 noun /ˈrɛɡjəleɪtər/

regulator

调节器
Meaning
a person or device that controls or maintains the operation of a system
Example
The government appointed a new regulator for the financial sector.
政府为金融部门任命了新的调节器。
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 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 /rɪˈsiː.vər/

Receiver

接收器
Meaning
a person or thing that receives something; the part of a telephone containing the earpiece and mouthpiece
Example
She picked up the receiver to answer the phone call.
她拿起听筒接听电话。
C2 adjective /ˈrɪbɔːld/

ribald

猥亵笑话
Meaning
Referring to sexual matters in a humorous or vulgar way.
Example
The comedian’s ribald jokes made the audience laugh uncomfortably.
喜剧演员的猥亵笑话让观众不自在地笑了。
C1 verb /rɪˈnaʊns/

renounce

放弃
Meaning
to formally declare rejection of something, such as a claim, belief, or way of life
Example
She renounced her citizenship to move abroad permanently.
她放弃了国籍以便永久定居国外。
C1 adjective /riˈæk.tɪv/

Reactive

反应性; 化学活性
Meaning
responding to situations rather than initiating them; chemically active
Example
The company took a reactive approach to customer complaints.
公司对客户投诉采取了反应性的方法。
A2 verb /rɪˈmaɪnd/

remind

提醒
Meaning
to cause someone to remember something
Example
Please remind me to call her tomorrow.
请提醒我明天打电话给她。
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。
B2 noun /rɪˈzembləns/

Resemblance

相似
Meaning
the state of being alike or similar; similarity in appearance or character
Example
There's a strong resemblance between the two sisters.
这两个姐妹之间有着强烈的相似性。
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。
C1 adjective /ˈraʊzɪŋ/

rousing

激动人心
Meaning
Exciting, inspiring, or stirring.
Example
The speaker delivered a rousing speech that moved the audience.
演讲者发表了一个激动人心的演讲，打动了观众。
B1 noun /ˈrʌbər/

rubber

幸福
Meaning
a tough elastic substance made from the latex of tropical plants or synthetically, used for making tires, boots, and other products.
Example
The tires are made of natural rubber.
她收到奖项时无法掩饰自己的幸福。
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。
B1 adjective /rɪˈmoʊt/

remote

远程
Meaning
Situated far from the main centers of population; distant.
Example
They stayed in a remote village during their trip.
他们在旅行期间住在一个偏远的村庄。
A2 verb /rɪˈkwaɪər/

require

需要
Meaning
to need something; to demand or insist on
Example
This job requires excellent communication skills.
这份工作要求出色的沟通技巧。
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 /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 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 /rɪˈsɪdɪˌvɪzəm/

recidivism

Meaning
The tendency of a convicted criminal to reoffend or relapse into criminal behavior.
Example
The government introduced new programs to reduce recidivism among former inmates.
C1 noun /rɪˈpɔːrtɪʒ/

reportage

报道
Meaning
the act of reporting news or describing events in the media
Example
The magazine is known for its detailed reportage of political issues.
这本杂志以其对政治问题的详细报道而闻名。
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 /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。
C1 noun /ˈrɛtɪsəns/

reticence

沉默
Meaning
the quality of being reserved or unwilling to speak freely
Example
His reticence made it difficult to know what he was thinking.
他的沉默让人很难知道他在想什么。
C1 noun /ˈrɪɡər/

rigor

严格
Meaning
strictness, severity, or demanding conditions
Example
The training was carried out with great rigor.
培训以极大的严格性进行。
C2 noun /roʊˈtʌn.də.ti/

rotundity

圆形
Meaning
the quality of being round or plump
Example
The rotundity of the balloon made it float gracefully.
气球的圆形使它优雅地漂浮。
B2 noun, verb, adjective /ræŋk/

rank

职级
Meaning
A position in a hierarchy; to place in order according to importance or quality.
Example
She quickly rose to a senior rank in the company.
她迅速晋升为公司中的高级职位。
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。
C1 adjective /rɪˈsɔːrs ɪˈfɪʃ.ənt/

resource-efficient

资源高效
Meaning
Using resources in a way that minimizes waste and maximizes productivity.
Example
Resource-efficient farming conserves water and energy.
资源高效的农业节约水和能源。
B2 verb /rɪˈliːv/

relieve

Meaning
to make pain, distress, or difficulty less severe or serious
Example
The medicine helped relieve his headache.
C1 noun /ˌræʃəˈnæl/

rationale

基本原因
Meaning
the underlying reason or explanation for something
Example
The rationale behind his decision was clearly explained.
他决定背后的理由被清楚地解释了。
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。
C2 noun /ˌrɛprəˈbeɪʃən/

reprobation

Meaning
Strong disapproval or condemnation; rejection by God as beyond salvation.
Example
The teacher’s face showed clear reprobation at the student’s rude remark.
C1 noun /ˈrɒstrəm/

rostrum

讲台
Meaning
A raised platform for speakers, performers, or leaders.
Example
The politician delivered a speech from the rostrum.
政治家在讲台上发表了演讲。
C2 adjective /rɪˈtɪkjʊlət/

reticulate

网状
Meaning
Having a net-like pattern or structure.
Example
The leaf had a reticulate pattern of veins.
叶子有着网状的脉络图案。
A2 verb /roʊl/

roll

滚动
Meaning
to move by turning over and over on an axis
Example
She rolled the ball down the hill.
她把球滚下了山坡。
C2 noun /ˈreɪləri/

raillery

友好的玩笑
Meaning
good-humored teasing or joking
Example
Their friendship was full of light-hearted raillery.
他们的友谊充满了轻松的玩笑。
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。
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。
C2 noun /rɪˈvaɪlər/

reviler

侮辱者
Meaning
a person who criticizes or insults others abusively
Example
He was known as a reviler of all who opposed him.
他以侮辱所有反对他的人而闻名。
C1 noun /ˈrɛz.ə.nəns/

resonance

共鸣
Meaning
A deep, reverberating sound or a quality of evoking response.
Example
His speech had a deep resonance with the audience.
他的演讲在观众中产生了深刻的共鸣。
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。
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。
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 /ˈrɛpərˌtɔːri/

repertory

剧目
Meaning
A collection of works that a company, performer, or institution regularly performs; also a storehouse of information or skills.
Example
The theater has a repertory of classic plays.
剧院有一系列经典剧目的演出。
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。
C1 noun /rɪˈnaʊn/

Renown

声誉; 名声
Meaning
the condition of being known or talked about by many people; fame
Example
The scientist achieved international renown for her discoveries.
这位科学家因其发现而获得了国际声誉。
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。
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 /rɪˈlʌktənt/

Reluctant

不情愿的; 犹豫的; 不愿意做某事;
Meaning
unwilling; hesitant; disinclined to do something;
Example
She was reluctant to share her personal information.
她不情愿分享个人信息。
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。
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 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.
C2 noun /ˌrɛv.əˈkeɪ.ʃən/

revocation

撤销
Meaning
The act of officially canceling or withdrawing something.
Example
The court ordered the revocation of his license.
法院命令撤销他的许可证。
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 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 /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。
B1 adjective /ˈrʊr.əl/

Rural

农村的
Meaning
relating to the countryside; characteristic of farming or country life
Example
She grew up in a rural area far from the city.
她在离城市很远的农村地区长大。
A2 noun /roʊz/

Rose

玫瑰
Meaning
a fragrant flower with thorny stems, typically red, pink, white, or yellow
Example
She gave me a beautiful red rose for Valentine's Day.
她在情人节送给我一朵漂亮的红玫瑰。
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, 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。
C2 adjective /rɪˈmɪs/

remiss

疏忽
Meaning
Negligent in performing a duty or responsibility.
Example
The manager was remiss in not checking the financial reports carefully.
经理在没有仔细检查财务报告时疏忽了。
B2 noun /ˈrʊki/

rookie

菜鸟
Meaning
a person who is new to an activity or organization; a beginner
Example
The rookie policeman made a few mistakes on his first day.
新警察在第一天犯了几次错误。
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。
C1 adjective /rɪˈzɪdjuəl/

residual

剩余的
Meaning
Remaining after the greater part has gone.
Example
The patient experienced residual pain after the surgery.
病人在手术后经历了剩余的疼痛。
C1 adjective /ˌrɛmɪˈnɪsənt/

reminiscent

唤起回忆的
Meaning
Tending to remind one of something; suggestive of something in the past.
Example
The smell of rain is reminiscent of my childhood in the village.
雨的气味让我想起了我在村里的童年。
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 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。
C2 noun /ˈrɪvjʊlət/

rivulet

小溪
Meaning
a small stream of water; a tiny brook
Example
A rivulet ran down the hillside after the rain.
雨后，一条小溪从山坡上流下来。
C1 verb /rɪˈtɔːrt/

retort

反驳
Meaning
To reply quickly or sharply, often in a witty or angry manner.
Example
He quickly retorted that he was not to blame.
他迅速回应说他没有错。
C1 noun rɪˈfaɪnmənt

refinement

精炼
Meaning
The process of removing impurities or unwanted elements from a substance.
Example
His manners showed a refinement that made him stand out in any crowd.
他的举止展示了一种精炼，让他在人群中脱颖而出。
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 verb /ˈrʌmpəl/

rumple

弄皱
Meaning
to make something untidy or wrinkled by creasing or crumpling
Example
She accidentally rumpled her dress while packing.
她在打包时不小心弄皱了她的裙子。
B2 verb /ˈreɪn.dʒɪŋ/

ranging

波动
Meaning
Extending or varying between limits.
Example
The temperatures are ranging from 15 to 30 degrees this week.
本周气温在15到30度之间波动。
A2 adjective /ˈrʌʃən/

russian

Meaning
relating to Russia, its people, or its language
Example
She is studying the Russian language at university.
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。