recessionary
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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 adjective /ˈræmpənt/

rampant

猖獗
Meaning
existing or spreading unchecked, often in an undesirable way
Example
Corruption was rampant in the city administration.
腐败在市政府中蔓延。
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 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 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 /rəʊˈbɒt.ɪk ˈsɜː.dʒər.i/

robotic surgery

机器人手术
Meaning
Surgery performed with the assistance of robotic systems to enhance precision and reduce invasiveness.
Example
Robotic surgery enhances precision in complex procedures.
机器人手术提高了复杂程序的精确度。
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。
C1 verb /rɪˈdʒɛnəreɪt/

regenerate

再生
Meaning
to grow or produce again; to renew or restore
Example
The lizard can regenerate its lost tail.
蜥蜴可以再生它失去的尾巴。
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 noun ˌrev.əˈluː.ʃən.ər.i ɪˈnɪʃ.ə.tɪv

revolutionary initiative

革命性倡议
Meaning
A groundbreaking action or plan that brings about significant change or transformation.
Example
The revolutionary initiative promotes sustainable energy.
革命性倡议促进可持续能源。
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。
C1 adjective /ˈrɛtroʊˌɡreɪd/

retrograde

逆行的
Meaning
moving backward or returning to a worse condition
Example
The policy was seen as a retrograde step for human rights.
该政策被视为人权的倒退步骤。
C1 adjective /ˈrep.jə.tə.bəl/

Reputable

声誉良好
Meaning
having a good reputation; respected and trusted
Example
She works for a reputable law firm in the city.
她在这座城市的一个声誉卓著的律师事务所工作。
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。
C1 adjective /rɪˈzɪstɪv/

resistive

电阻性
Meaning
tending to resist or oppose; in physics, relating to electrical resistance
Example
The material has resistive properties that slow down current flow.
该材料具有电阻特性，能够减慢电流流动。
C1 verb /ˌriːəˈdʒʌst/

readjust

重新调整
Meaning
To change or move something again in order to achieve a better fit, condition, or balance.
Example
He readjusted the chair to make it more comfortable.
他重新调整了椅子，使其更加舒适。
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 adjective /ˈreɪ.kɪʃ/

Rakish

俏皮
Meaning
having a dashing, jaunty, or slightly disreputable quality or appearance
Example
He wore his hat at a rakish angle that gave him a charming appearance.
他戴着一顶俏皮的帽子，给人一种迷人的感觉。
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。
C1 verb /ˈrʌm.ɪdʒ/

rummage

杂乱地翻找
Meaning
to search through something in a disorderly way
Example
He rummaged through the drawer for his keys.
他在抽屉里翻找钥匙。
C1 noun ˈrez.ɪ.djuːz

residues

残留物
Meaning
A small amount of something that remains after the main part has gone or been taken or used.
Example
The burning process leaves no harmful residues.
燃烧过程不会留下有害的残留物。
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 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 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 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。
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 /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。
C1 noun /ˈrʌmpəs/

Rumpus

喧闹; 骚动; 混乱
Meaning
a noisy disturbance; an uproar or commotion
Example
The children caused quite a rumpus in the playground.
孩子们在游乐场引起了相当大的骚乱。
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。
C1 verb /reɪz/

raze

拆除
Meaning
To completely destroy or demolish something, especially a building.
Example
The old factory was razed to make way for new apartments.
旧工厂被拆除，为新公寓让路。
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 /rɪˈvɜːrbəreɪt/

reverberate

回响
Meaning
To echo repeatedly or have continuing effects.
Example
The sound of the explosion reverberated through the valley.
爆炸声在山谷中回响。
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。
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.
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。
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 adjective /rɪˈsɜːrdʒənt/

resurgent

复兴的
Meaning
Becoming strong, active, or popular again.
Example
The resurgent economy gave hope to many businesses.
复兴的经济给许多企业带来了希望。
C1 verb /ˌriːˈsiːt/

reseat

重新安排
Meaning
to seat someone again or to fit something back into its place
Example
The usher had to reseat the guests after the interruption.
引座员在干扰后不得不重新安排宾客。
C1 adjective /ˌruː.dɪˈmen.tər.i/

Rudimentary

基本的; 初级的; 不完全发展的; 发展初期阶段的
Meaning
basic; elementary; undeveloped; in the earliest stage of development
Example
She has only rudimentary knowledge of French.
她对法语的了解只是初步的。
C1 noun /rəˈpɪdəti/

rapidity

迅速
Meaning
The quality of moving or happening quickly; swiftness or speed.
Example
The rapidity of technological change is astonishing.
技术变化的速度令人震惊。
C1 noun /rʌsk/

Rusk

干饼干；烤面包
Meaning
a hard, dry biscuit or twice-baked bread; a type of crisp, sweet biscuit
Example
The baby enjoyed eating the soft rusk with milk.
宝宝喜欢吃奶时吃软脆饼干。
C1 noun /ˈruːbrɪk/

rubric

评分标准 / 指南
Meaning
A set of instructions, rules, or a heading in a document, often used for grading criteria.
Example
The teacher provided a grading rubric for the assignment.
老师提供了一个作业评分标准。
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 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 noun rɪˌkuːpərˈeɪʃən

recuperation

恢复
Meaning
The process of gradually recovering from illness or fatigue
Example
Rest is essential for recuperation after illness.
休息对疾病后的恢复至关重要。
C1 verb /ˌriːˈkɒn.stɪ.tʃuːt/

reconstitute

重建
Meaning
to restore something to its original form or state; to reassemble
Example
The group was reconstituted after the leader returned.
该小组在领导人归来后重新组建。
C1 noun ˈrɛp.ə.twɑːr

repertoire

剧目
Meaning
A stock of plays, dances, or pieces that a company or a performer knows or is prepared to perform.
Example
The actor's repertoire includes both comedy and drama.
演员的剧目包括喜剧和戏剧。
C1 noun ˌriː.pɚˈkʌʃ.ənz

repercussions

后果
Meaning
The unintended consequences or effects of an action or event.
Example
The new policy had unintended repercussions on the economy.
新的政策对经济产生了意外的影响。
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。
C1 noun /rɪdʒ/

ridge

山脊或山顶
Meaning
a long, narrow hilltop, mountain range, or raised strip
Example
We walked along the mountain ridge.
我们沿着山脊走。
C1 noun/verb /rɪˈpriːv/

reprieve

Meaning
A temporary relief or delay from something unpleasant; to postpone or cancel punishment.
Example
The prisoner was granted a last-minute reprieve from execution.
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 verb /rɪˈsɜːrdʒ/

resurge

复兴
Meaning
To rise, increase, or become active again after a decline.
Example
Interest in traditional crafts has begun to resurge.
对传统手工艺的兴趣已经开始复兴。
C1 noun, verb /raʊt/

rout

失败
Meaning
A decisive defeat; to defeat completely.
Example
The army routed the enemy forces in the battle.
军队在战斗中彻底击败了敌军。
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 /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 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。
C1 noun /ˈrɛt.ər.ɪk/

rhetoric

有效或有说服力的演讲或写作的艺术
Meaning
The art of effective or persuasive speaking or writing; skillful use of language to influence others.
Example
Political leaders often use rhetoric to influence people.
政治领导人经常使用修辞来影响人们。
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。
C1 noun /rɪˈbʌtəl/

rebuttal

反驳
Meaning
a statement or argument made to oppose or disprove another
Example
Her rebuttal was clear and convincing.
她的反驳清晰而有说服力。
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。
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。
C1 adjective /rɪˈvenʒ.fəl/

Revengeful

复仇的
Meaning
seeking or desiring revenge; vindictive
Example
He became revengeful after being betrayed by his friend.
他在被朋友背叛后变得复仇心切。
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。
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 noun /ˌriː.pəˈkʌʃ.ən/

repercussion

后果
Meaning
An unintended consequence occurring some time after an event or action.
Example
The economic crisis had severe repercussions on global trade.
经济危机对全球贸易产生了严重的后果。
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。
C1 noun /ˈriːbeɪt/

rebate

折扣/退款
Meaning
a partial refund given to someone who has paid too much money for something
Example
The store offered a rebate on bulk purchases.
商店对大宗购买提供了折扣。
C1 noun /rɪˈteɪnər/

retainer

预付款 / 固定器
Meaning
a fee paid in advance to secure someone's services, or a device that holds something in place
Example
The lawyer asked for a retainer before taking the case.
律师在接案之前要求预付款。
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。
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 adjective /rɪˈtæl.i.ə.tɔːr.i/

retaliatory

报复性
Meaning
Taking action in response to another's action, characterized as punitive, revengeful, or counteractive.
Example
The country imposed retaliatory tariffs in response to trade sanctions.
该国对贸易制裁实施了报复性关税。
C1 noun /ˈrʌp.tʃər/

Rupture

破裂; 关系的断裂
Meaning
breaking or bursting apart; breakdown of relations
Example
The rupture in the pipeline caused a massive oil spill.
管道中的断裂造成了大规模的石油泄漏。
C1 noun/verb /reɪn/

rein

Meaning
A strap used to control a horse; to control or guide something.
Example
The rider pulled the rein to stop the horse.
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。
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 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。
C1 verb /ˌriː.kənˈviːn/

reconvene

重新召开
Meaning
to gather or assemble again, especially for a meeting
Example
The committee will reconvene after lunch.
委员会将在午餐后重新召开。
C1 verb /rɪˈlɛnt/

relent

让步，变得温和
Meaning
to become less severe, harsh, or strict
Example
After hours of begging, she finally relented.
经过几个小时的恳求，她终于心软了。
C1 noun /ˌrɛstɪˈtjuːʃən/

restitution

赔偿
Meaning
The act of restoring something to its rightful owner or compensating for loss
Example
The court ordered restitution to the victims of the fraud.
法院命令对欺诈受害者进行赔偿。
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 /ˈruː.bi/

Ruby

红宝石
Meaning
a precious red gemstone; a deep red variety of corundum
Example
The ruby ring was her most treasured possession.
那枚红宝石戒指曾是她最珍贵的财物。
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。
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。
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 verb /raɪl/

rile

Meaning
to irritate or annoy someone
Example
His careless comments really riled her.
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。
C1 noun /rɪˈvʌlʃən/

revulsion

厌恶
Meaning
a strong feeling of disgust or repulsion
Example
She felt revulsion at the sight of the cruel act.
她看到残忍的行为时感到厌恶。
C1 noun /rɪˈpen.təns/

Repentance

悔改
Meaning
the action of repenting; sincere regret or remorse
Example
His genuine repentance moved everyone in the courtroom.
他真正的悔改感动了法庭上的所有人。
C1 verb /rɪˈpʌls/

repulse

击退 / 激起反感
Meaning
to drive back an attack or attacker by force; to cause intense dislike or disgust
Example
The army managed to repulse the enemy attack.
军队成功地击退了敌人的进攻。
C1 noun /rɪft/

rift

裂缝
Meaning
a serious break in a relationship; a split or crack
Example
A rift developed between the two friends after the argument.
争执后，两个朋友之间产生了裂缝。
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。
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。
C1 adjective rɪsk-ədˈʤɛstɪd

risk-adjusted

风险调整
Meaning
Modified or calibrated to account for risk factors in investment returns.
Example
Risk-adjusted returns consider both potential profit and loss.
风险调整后的回报同时考虑潜在的利润和损失。
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。
C1 verb /ˌriːˈkæl.ɪ.breɪt/

recalibrate

重新校准, 重新调整
Meaning
To calibrate again or differently; to adjust or correct something based on new information or changed circumstances.
Example
The company had to recalibrate its strategies to adapt to the market.
公司必须重新校准其策略以适应市场。
C1 adjective /ˈraʊ.di/

Rowdy

吵闹的; 无序的; 破坏性的
Meaning
disorderly; unruly; noisy and disruptive
Example
The rowdy children were making too much noise.
吵闹的孩子们制造了太多噪音。
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。
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。
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 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 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。
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。
C1 verb /ˌriːhəˈbɪlɪteɪt/

rehabilitate

Meaning
to restore someone to health, normal life, or a good condition after illness, injury, or imprisonment
Example
The clinic helps rehabilitate injured athletes.
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。
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.
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。
C1 verb /rɪˈmjuːnəreɪt/

remunerate

支付
Meaning
To pay someone for services or work done.
Example
The company will remunerate employees fairly for their overtime.
公司将公平地支付员工的加班费。
C1 noun /ˈreɪ.vən/

Raven

乌鸦
Meaning
a large, black bird with a thick bill and harsh croaking voice
Example
The raven perched on the old oak tree and cawed loudly.
那只乌鸦停在老橡树上大声地叫。
C1 adjective /rɪˈper.ə.bəl/

Repairable

可修复的
Meaning
able to be fixed or mended; capable of being repaired
Example
The broken phone is repairable with the right parts.
坏掉的手机可以用正确的部件修复。
C1 noun /rɑk sɔlt/

Rock Salt

岩盐
Meaning
natural salt crystals formed from evaporated ancient seas; unrefined salt
Example
Rock salt is considered healthier than table salt.
岩盐被认为比食盐更健康。
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 noun /rɪˈpɑːzɪtɔːri/

repository

仓库
Meaning
a place where things are stored or kept for safekeeping
Example
The library serves as a repository of knowledge.
图书馆作为知识的仓库。
C1 adjective /ræmˈbʌŋk.ʃəs/

rambunctious

喧闹的
Meaning
boisterous, energetic, and difficult to control.
Example
The rambunctious children filled the house with noise.
那些喧闹的孩子让屋子充满了噪音。
C1 adjective /ˈruːfəl/

rueful

遗憾的
Meaning
Expressing sorrow, regret, or pity.
Example
He gave a rueful smile after losing the match.
他在输掉比赛后露出了遗憾的笑容。
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。
C1 noun /ˌriː.əˈdʒʌst.mənt/

readjustment

Meaning
The act of changing or correcting something again to make it suitable or balanced.
Example
After moving to a new city, he went through a period of readjustment.
C1 noun /rɪˈvɒl.vər/

Revolver

左轮手枪
Meaning
a pistol with revolving chambers enabling several shots to be fired without reloading
Example
The detective drew his revolver from its holster.
侦探从枪套中拔出了他的左轮手枪。
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 /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。