refragable
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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 /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。
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。
B2 adjective /ˈrɑː.ki/

Rocky

崎岖的; 不稳定的; 困难的
Meaning
full of rocks; unsteady; difficult
Example
The rocky path made hiking difficult for the tourists.
崎岖的小路让游客们的远足变得困难。
B2 noun /ˈreɪ.zər/

Razor

剃须刀
Meaning
a sharp-edged instrument used for shaving hair from the skin
Example
He shaved his beard with a sharp razor.
他用一把锋利的剃须刀刮胡子。
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。
B2 adjective /ˈruː.tɪd/

Rooted

根深蒂固的
Meaning
deeply established; firmly fixed
Example
His beliefs are deeply rooted in tradition.
他的信念深深扎根于传统。
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。
B2 verb /rɒt/

rot

腐烂
Meaning
to decay or decompose; to become corrupt
Example
The fruit will rot if left in the sun.
水果如果暴露在阳光下会腐烂。
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。
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 verb /rɪˈvoʊk/

revoke

撤销
Meaning
To officially cancel or withdraw a decision, privilege, or right.
Example
The government decided to revoke his passport.
政府决定撤销他的护照。
B2 adjective /rɪˈzɜːrvd/

Reserved

内向的; 保守的
Meaning
slow to reveal emotion or opinions; restrained in manner
Example
She is quite reserved and doesn't talk much in meetings.
她相当内向，在会议中很少讲话。
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。
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。
C2 noun /rɪˈsɪʒən/

rescission

取消
Meaning
the cancellation or annulment of a law, contract, or agreement
Example
The rescission of the contract left both parties disappointed.
合同的取消让双方都感到失望。
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 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 /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。
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 /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。
A2 noun /ˈrɛkɔːd/

record

记录
Meaning
a written or spoken account of something
Example
I kept a record of all the meetings.
我记录了所有的会议。
C1 verb /ˈrɪdɪkjuːl/

ridicule

嘲笑
Meaning
To make fun of someone or something in a cruel or dismissive way.
Example
He was ridiculed for his strange ideas.
他因奇怪的想法而被嘲笑。
C2 verb /rɪˈfrækt/

refract

折射
Meaning
To bend light, sound, or heat as it passes through a medium.
Example
The water refracts light, making the straw look bent.
水折射光线，让吸管看起来弯曲。
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 ˌriːˈstrʌk.tʃər.ɪŋ

restructuring

重组
Meaning
The action of organizing something differently.
Example
The company underwent restructuring to improve efficiency.
公司进行重组以提高效率。
B1 adverb /ˈrel.ə.tɪv.li/

Relatively

相对地
Meaning
in comparison to something else; quite; fairly
Example
The weather is relatively warm today.
今天的天气相对温暖。
C2 noun /rɪˈpʌɡ.nəns/

repugnance

厌恶
Meaning
intense disgust or strong aversion towards something
Example
She felt deep repugnance at the cruelty of the act.
她对这个行为的残忍感到深深的厌恶。
C1 noun /ˈrep.lɪ.kə/

Replica

复制品
Meaning
an exact copy or model of something, especially one on a smaller scale
Example
The museum displayed a perfect replica of the ancient statue.
博物馆展示了古代雕像的完美复制品。
B2 noun /ˈreɪ.zən/

Raisin

葡萄干
Meaning
dried grape
Example
She added raisins to the oatmeal cookies for extra sweetness.
她在燕麦饼干里加了葡萄干以增加甜味。
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.
A1 verb /rɪˈmembə/

remember

记得
Meaning
to bring a past event back into one's mind; to keep in memory
Example
I remember my first day at school.
我记得我在学校的第一天。
B2 verb /ˌriːprəˈdjuːs/

reproduce

再生产, 繁殖
Meaning
To make a copy of something; to generate offspring.
Example
Many animals reproduce rapidly in favorable conditions.
许多动物在有利的条件下快速繁殖。
B2 verb /rɪˈɡeɪn/

regain

恢复
Meaning
to get back something that was lost; to recover
Example
He regains his strength after the illness.
他在生病后恢复了力量。
A2 noun /reɪt/

rate

费率
Meaning
the cost or price of something, or the amount at which something happens
Example
The rate of inflation is increasing every year.
通货膨胀率每年都在上升。
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。
C1 adjective /ˌrɛprɪzɛnˈteɪʃənl̩/

representational

表现性
Meaning
Relating to or depicting something in a realistic or symbolic way.
Example
The artist preferred a representational style of painting.
艺术家更喜欢表现主义的绘画风格。
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。
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。
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/verb /rɪˈproʊtʃ/

reproach

指责 / 批评
Meaning
An expression of disapproval or disappointment; to criticize someone for doing wrong.
Example
She reproached him for arriving late to the meeting.
她因迟到而责备了他。
B1 noun rɔː mətɪˈrɪəlz

raw materials

原材料
Meaning
The basic material from which a product is made.
Example
The factory imports raw materials for production.
工厂进口原材料用于生产。
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 noun /raɪt/

rite

仪式
Meaning
a religious or ceremonial act
Example
The wedding rite was performed with great solemnity.
婚礼仪式庄严举行。
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。
C2 adjective /rəˈpeɪ.ʃəs/

rapacious

贪婪
Meaning
having an extreme desire to take things for oneself, greedy
Example
The rapacious landlord raised the rent without reason.
贪婪的房东无缘无故地提高了租金。
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。
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。
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 /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。
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 noun /rɪˈdʒɔɪsɪŋ/

rejoicing

欢庆
Meaning
The action of showing great joy or happiness
Example
There was much rejoicing after the victory.
胜利之后有很多欢庆。
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 /ˈræʃənaɪz/

rationlize

合理化
Meaning
to justify or explain something with logical reasons, even if not appropriate or true
Example
He tried to rationlize his mistake by blaming the system.
他试图通过指责系统来合理化他的错误。
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。
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。
C1 verb /rɪˈkaʊnt/

recount

叙述
Meaning
to narrate or tell the details of an event or experience
Example
She recounted her adventures during the summer trip.
她讲述了她在夏季旅行中的冒险。
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。
B1 noun /rɪˈvɪʒ.ən/

Revision

修订; 修订版
Meaning
the action of revising; a revised edition or form of something; review of subject matter
Example
The students spent hours doing revision for their final exams.
学生们花了几个小时做最后考试的复习。
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。
B1 noun, verb /ˈrɒkɪt/

rocket

幸福
Meaning
a missile or vehicle propelled by a rocket engine; to increase or move very quickly
Example
The company’s profits rocketed after the new product launch.
当她获得奖项时，她无法掩饰她的幸福。
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。
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。
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。
B1 adjective /rɪˈpiː.tɪd/

Repeated

重复的; 多次发生
Meaning
done again; happening again; occurring multiple times
Example
He made repeated attempts to contact her.
他多次尝试联系她。
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 /ˌrɛtroʊˈæktɪv/

retroactive

追溯的
Meaning
applying to a period before it was enacted or established
Example
The new law was made retroactive to cover past cases.
新法律追溯适用于过去的案件。
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。
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。
C2 verb /ˈræpsəˌdaɪz/

rhapsodize

热情洋溢地谈论
Meaning
to speak or write with great enthusiasm and admiration
Example
He would often rhapsodize about his travels to Europe.
他常常带着极大的热情谈论他的欧洲旅行。
B2 noun /ˌrɛprɪzɛnˈteɪʃən/

representation

代表
Meaning
the action of speaking or acting on behalf of someone or something
Example
Her representation of the team was impeccable.
她对团队的代表非常出色。
B1 adjective /ˈrɔɪ.əl/

Royal

皇家
Meaning
belonging to or connected with the monarch or monarchy; magnificent; excellent
Example
The royal family attended the ceremony.
皇室家族参加了仪式。
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。
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。
B2 adjective /rɪˈɡret.ə.bəl/

Regrettable

令人遗憾的; 不幸的; 可惜的
Meaning
causing or deserving regret; unfortunate; deplorable
Example
It is regrettable that so many talented people left the company.
很遗憾这么多有才华的人离开了公司。
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 /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。
B1 adjective /rɪˈleɪ.tɪd/

Related

相关的; 有联系的
Meaning
connected; associated; having a connection or relationship
Example
These two problems are closely related to each other.
这两个问题彼此紧密相关。
C1 noun /rʌk/

Ruck

推搡; 混乱的人群
Meaning
a situation where a crowd of people are pushing against each other; a disorderly crowd
Example
There was a ruck at the football match.
足球比赛中发生了推搡。
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 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。
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。
A1 noun /raɪs/

Rice

米饭
Meaning
a cereal grain that is a staple food in many countries
Example
We eat rice with curry for dinner.
我们晚餐吃咖喱配米饭。
C2 adjective /ˈrɛɡnənt/

regnant

在位
Meaning
Reigning; currently holding power, authority, or dominance.
Example
The regnant queen introduced several reforms during her reign.
在位的女王在她的统治期间进行了几项改革。
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 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。
C2 verb /rɪˈkwaɪt/

requite

回报
Meaning
to return or repay a favor, service, or feeling
Example
She requited his kindness with a thoughtful gift.
她用一份深思熟虑的礼物回报了他的善意。
B1 verb /rʌb/

rub

摩擦
Meaning
to press and move something firmly against a surface; to apply pressure with movement
Example
She rubbed her hands together to keep them warm.
她搓手来保持温暖。
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 /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 noun /rɪˈmɪʃən/

remission

Meaning
A temporary or permanent decrease or disappearance of disease symptoms; forgiveness of sins or debts.
Example
The patient’s cancer is in remission after the treatment.
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。
B2 noun /ræk/

Rack

架子
Meaning
a framework or structure for holding or storing things
Example
She hung her coat on the rack by the door.
她把外套挂在门旁的架子上。
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 /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。
B2 noun ˈrɛvənuː

revenue

收入
Meaning
Income, especially when of a company or organization.
Example
The company's revenue grew by 10% this year.
公司的收入今年增长了10%。
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。
C1 verb /ˌrekəˈlekt/

recollect

回忆
Meaning
to remember something; to recall from memory
Example
I can't recollect where I put my keys.
我记不起来我把钥匙放在哪里了。
B2 verb /rɪˈkruːt/

recruit

招募
Meaning
to enlist or hire people for a job, service, or membership
Example
The company is trying to recruit more software engineers.
这家公司正在努力招募更多的软件工程师。
C2 noun /rɪˈfɛktəri/

refectory

食堂
Meaning
a dining hall, especially in a monastery, convent, or school
Example
Students had lunch in the refectory.
学生们在食堂吃午餐。
C1 noun /rɪˈsɜː.dʒəns/

resurgence

复兴
Meaning
An increase or revival after a period of little activity, popularity, or occurrence.
Example
The city saw a resurgence in tourism after the pandemic.
这座城市在大流行后看到了旅游业的复兴。
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。
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。
C1 verb /ˈræʃənəlaɪz/

rationalize

理性化
Meaning
to attempt to explain or justify behavior or decisions with logical reasons, even if they are not true or appropriate
Example
She tried to rationalize her lateness by blaming the traffic.
她试图通过怪罪交通来为自己的迟到辩解。
C1 adjective /ˈriː.fleks/

Reflex

反射
Meaning
an action performed without conscious thought; relating to reflection
Example
The doctor tested her reflex response by tapping her knee.
医生通过轻轻敲打她的膝盖来测试她的反射反应。
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。
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。
C2 noun /ˈræbəl/

Rabble

乌合之众
Meaning
a disorderly crowd; the common people regarded as socially inferior
Example
The politician dismissed the protesters as mere rabble.
政治家将抗议者视为仅仅是乌合之众。
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。
A2 noun /ræt/

Rat

老鼠
Meaning
a large long-tailed rodent that is typically considered a pest
Example
The rat scurried across the kitchen floor.
老鼠在厨房的地板上快速跑过。
B1 noun rɪˈdʌk.ʃən

reduction

减少
Meaning
The action or fact of making a specified thing smaller or less in amount, degree, or size.
Example
Greenhouse gas reduction is a primary global goal.
减少温室气体排放是一个主要的全球目标。
C1 noun /ˌrev.əˈluː.ʃən.ər.i ˈbreɪk.θruː/

revolutionary breakthrough

革命性的突破
Meaning
A sudden, dramatic, and important discovery or development that changes everything.
Example
Robotic surgery is a revolutionary breakthrough in healthcare.
机器人手术是医疗领域的革命性突破。
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。
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。
C1 adjective /ˈrek.wɪ.zɪt/

Requisite

必要的; 强制的
Meaning
made necessary by particular circumstances; required
Example
Good communication skills are requisite for this job.
良好的沟通技巧是这项工作的必要条件。
B2 noun /rɪˈdʒɛkʃən/

rejection

拒绝
Meaning
the action of refusing or dismissing something or someone
Example
Her rejection of the offer surprised everyone.
她拒绝了这个提议，令所有人吃惊。
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。
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 adjective /ˌrɛpərˈtɔːriəl/

repertorial

报道的
Meaning
Relating to or characteristic of a repertoire, especially in journalism or performance contexts.
Example
The journalist's repertorial style captured every detail of the unfolding story.
记者的报道风格捕捉了展开故事的每个细节。
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。
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。