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B1 verb /rɪˈviːl/

reveal

揭示
Meaning
to make known or show something that was hidden
Example
The investigation revealed the truth.
调查揭示了真相。
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 verb /ˈriːəlaɪz/

realize

意识到
Meaning
to become aware of; to understand clearly; to achieve or make real
Example
I didn't realize how late it was until I checked the clock.
我没意识到已经这么晚了，直到我看了钟。
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 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。
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 adjective /ˈraɪtfəl/

rightful

合法的
Meaning
having a legitimate or just claim; proper or lawful
Example
She is the rightful owner of the property.
她是该财产的合法所有者。
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 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 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。
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。
B2 noun, verb /rɪˈzɔːrt/

resort

度假村 / 最后的选择
Meaning
A place for rest or recreation; to turn to something for help or solution.
Example
They stayed at a beach resort during their vacation.
他们在度假期间住在海滩度假村。
B2 noun /rɪˈfɔːr.mər/

Reformer

改革者
Meaning
a person who works to bring about positive changes in society or institutions
Example
The social reformer dedicated her life to improving education for all children.
社会改革者致力于改善所有儿童的教育。
C1 verb /rɪˈtreɪs/

retrace

Meaning
to go back over a path or route; to recall and repeat steps taken earlier
Example
She retraced her steps to find her lost keys.
B2 noun /ˈreɪsɪzəm/

racism

种族主义
Meaning
the belief that some races are superior to others, leading to unfair treatment or prejudice
Example
The organization works to eliminate racism in all forms.
该组织致力于消除所有形式的种族主义。
C1 verb /riːˈpeɪ.tri.eɪt/

repatriate

遣返
Meaning
To return someone to their own country, often after war or imprisonment.
Example
The government worked to repatriate the refugees safely.
政府努力确保安全地将难民遣返回国。
C1 noun /rɪˈpɛərə/

repairer

修理工
Meaning
a person whose job is to fix damaged or broken things
Example
The repairer fixed the broken washing machine quickly.
修理工很快修好了坏掉的洗衣机。
B2 verb /rɪˈkleɪm/

reclaim

Meaning
To take back or recover something; to restore to a usable state.
Example
The farmer worked to reclaim the barren land.
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。
B2 noun /rɪˈmaɪndər/

reminder

提醒
Meaning
something that helps you remember a fact, event, or action that you need to do or recall
Example
He set a reminder to call his mother on her birthday.
他设置了一个提醒，提醒自己在母亲的生日打电话给她。
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 noun /ˈrɛsɪpi/

recipe

食谱
Meaning
a set of instructions for preparing a particular dish, including a list of the ingredients required
Example
I found a great recipe for chocolate cake.
我找到了一个很棒的巧克力蛋糕食谱。
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。
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。
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。
B1 adjective /ˌriːəˈlɪstɪk/

realistic

现实的
Meaning
having or showing a sensible and practical idea of what can be achieved or expected
Example
She gave a realistic estimate of the project's cost.
她给出了项目成本的现实估计。
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.
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 /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 verb ˈrɛk.tɪ.faɪ

rectify

纠正
Meaning
To correct mistakes or make something right.
Example
The company took steps to rectify its financial mistakes.
公司采取了措施来纠正其财务错误。
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 noun /ˈruːlər/

ruler

统治者; 尺子
Meaning
A person who governs or controls a country; a straight-edged tool used for measuring or drawing lines
Example
The ruler drew a straight line on the paper while the king was a powerful ruler of his kingdom.
鲁勒在纸上画了一条直线，而国王是他王国的强大统治者。
C2 adjective /ˈrɛd.ələnt/

redolent

Meaning
having a strong pleasant smell; strongly reminiscent or suggestive of something
Example
The kitchen was redolent of spices and fresh herbs.
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.
C2 noun /ˈrɛkwiəm/

requiem

安魂曲
Meaning
A mass, music, or ceremony for the repose of the souls of the dead.
Example
The choir performed a requiem in memory of the late leader.
合唱团为已故领导人表演了安魂曲。
B1 adjective /rɪˈmɑːrkəbl/

Remarkable

值得注意的; 非凡的; 显著的;
Meaning
worthy of attention; extraordinary; notable;
Example
His recovery from the illness was remarkable.
他从疾病中恢复过来是值得注意的。
C1 verb /ˈrʌf.l̩/

ruffle

Meaning
to disturb the smoothness of something; to annoy or upset someone
Example
The wind ruffled her hair.
C1 verb /ˈræn.sæk/

ransack

洗劫
Meaning
to search a place roughly and steal or damage things
Example
Burglars ransacked the house while the family was away.
盗贼在家人不在时洗劫了房子。
B1 noun /rɪsk/

Risk

风险
Meaning
a situation involving exposure to danger; the possibility of something bad happening
Example
Taking this investment carries a high risk of losing money.
进行这项投资存在高风险可能会损失资金。
B1 noun roʊps

ropes

绳子
Meaning
A length of thick strong cord made by twisting together strands of hemp, sisal, nylon, or similar material.
Example
The ropes were tied securely to lift the heavy load.
这些绳子被牢牢绑住以提升重物。
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。
A2 noun /rɪˈzʌlt/

result

结果
Meaning
a consequence, effect, or outcome of something
Example
The result of the test was excellent.
测试的结果是优秀的。
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。
C1 noun /ˌrɛtrɪˈbjuːʃən/

retribution

报应，惩罚
Meaning
punishment inflicted as vengeance for a wrong or crime
Example
The villagers demanded retribution for the crime committed.
村民要求对犯下的罪行进行报应。
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 /rɪˈtrɛntʃ/

retrench

减少开支，裁员
Meaning
to reduce costs, spending, or staff to save resources
Example
The company had to retrench employees due to financial difficulties.
公司由于财务困难不得不裁员。
B2 noun /ˈraɪdər/

rider

骑手
Meaning
A person who rides a horse, bicycle, motorcycle, or other vehicle.
Example
The rider fell off the horse.
骑手从马背上摔了下来。
A2 verb /rɪˈpiːt/

repeat

重复
Meaning
to say or do something again
Example
Could you please repeat what you just said?
你能重复一下你刚才说的吗？
B2 verb /rɪˈzɑlv/

resolve

解决
Meaning
to solve a problem; to decide firmly
Example
The manager resolves the conflict between employees.
经理解决了员工之间的冲突。
C1 noun ˈrəʊvə

rover

探测车
Meaning
A vehicle for driving over rough terrain, especially one driven by remote control over extraterrestrial terrain.
Example
The rover landed on Mars to begin its exploration.
探测车在火星上着陆，开始了它的探索任务。
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。
B2 verb /rɪˈvoʊlt/

revolt

反抗
Meaning
to rebel against authority; to feel disgust
Example
The people revolted against the corrupt government.
人民反抗腐败的政府。
B1 verb /riˈækt/

react

反应
Meaning
to respond or behave in a particular way to something
Example
She reacted angrily when she heard the news.
她听到这个消息后愤怒地做出了反应。
B1 adjective /rʌf/

Rough

粗糙的; 粗糙; 严厉的
Meaning
having an uneven surface; not smooth; harsh
Example
The rough surface of the rock hurt my hands.
岩石的粗糙表面伤害了我的手。
A1 verb /raɪd/

ride

骑/骑行
Meaning
to travel on or in a vehicle; to sit on and control a horse
Example
She likes to ride her bicycle to work.
她喜欢骑自行车去工作。
A2 verb /rɪˈdjuːs/

reduce

减少
Meaning
to make smaller in size, amount, or degree; to decrease
Example
We need to reduce our expenses this month.
我们需要减少本月的开支。
A2 noun rɪˈpɔːt

report

报告
Meaning
An account given of a particular matter, especially in the form of an official document after thorough investigation or consideration.
Example
The report highlights critical issues.
报告突出了关键问题。
A2 verb /ˌrɛkəˈmɛnd/

recommend

推荐
Meaning
to suggest or advise something as being good or suitable
Example
I recommend trying the new restaurant downtown.
我推荐尝试市中心的新餐馆。
C2 adjective /rəˈʃɛrʃ/

recherche

稀有
Meaning
Rare, exotic, or obscure, often in a sophisticated or refined way.
Example
The gallery displayed many recherche artworks from unknown artists.
画廊展示了许多未知艺术家的稀有艺术作品。
B1 adjective /rɪˈlækst/

relaxed

放松的
Meaning
free from tension or stress; calm and comfortable
Example
She felt relaxed after listening to soft music.
听了轻音乐后，她感到很放松。
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。
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 /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 noun /ˌrɛtəˈrɪʃən/

rhetorician

雄辩家
Meaning
A person who is skilled in the art of rhetoric or persuasive speaking/writing.
Example
The rhetorician captivated the audience with his eloquence.
雄辩家凭借其雄辩技巧吸引了听众。
B2 noun /rɪˈlʌk.təns/

Reluctance

不情愿; 犹豫
Meaning
unwillingness to do something; hesitation
Example
He showed reluctance to accept the job offer.
他表现出不情愿接受工作提议。
C1 verb /riːˈfɜːrbɪʃ/

refurbish

翻新
Meaning
To renovate or redecorate something, especially a building.
Example
The company decided to refurbish its old office.
公司决定重新装修它的旧办公室。
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 /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。
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。
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 /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 /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。
A2 noun /rent/

Rent

幸福
Meaning
a payment made periodically by a tenant to a landlord for use of property
Example
The monthly rent for this apartment is quite affordable.
当她获得奖项时，她无法掩饰自己的幸福。
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。
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 /rɪˈvaɪ.zəl/

revisal

修订
Meaning
The act of revising, reviewing, or making changes to something.
Example
The revisal of the contract took longer than expected.
合同的修订比预期花费了更多时间。
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。
C1 noun /ˈrʌbəl/

rubble

瓦砾
Meaning
Broken stone, bricks, or debris from a collapsed building or structure.
Example
The rescue team searched through the rubble after the earthquake.
地震后，救援队在瓦砾中寻找。
C1 noun /rɪˈtriː.vəl/

retrieval

检索
Meaning
The process of getting something back, especially from storage or memory.
Example
The brain's retrieval system helps recall past experiences.
大脑的检索系统帮助回忆过去的经历。
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。
C1 noun ˌriːˌvaɪ.təl.aɪˈzeɪ.ʃən

revitalization

复兴
Meaning
The action of giving new life and vitality to something.
Example
Proper rest and nutrition lead to revitalization of the body.
适当的休息和营养有助于身体的复兴。
C1 verb /ˌriːɪnˈsteɪt/

reinstate

恢复
Meaning
To restore someone or something to their former position or condition.
Example
The company decided to reinstate the suspended employee.
公司决定恢复被停职的员工。
C2 noun/adjective /rɪˈmɒnstrənt/

remonstrant

抗议者
Meaning
A person who makes a forceful protest (noun); protesting or objecting (adjective).
Example
He was a remonstrant voice in the assembly.
他是会议中的抗议声音。
A1 noun /reɪn/

Rain

雨
Meaning
water that falls from clouds in small drops
Example
The heavy rain forced us to stay indoors.
大雨迫使我们待在室内。
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。
C2 adjective /ˈreɪ.moʊs/

ramose

分枝的
Meaning
having many branches.
Example
The ramose tree shaded the entire garden.
这棵分枝的树为整个花园提供了阴凉。
C1 noun /rɪˈpraɪ.zəl/

Reprisal

报复
Meaning
an act of retaliation; revenge taken for an injury or wrong
Example
The attack was carried out as a reprisal for the earlier bombing.
此次攻击是作为对早期爆炸事件的报复而进行的。
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。
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。
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 /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 verb /ˈrevəl/

revel

陶醉
Meaning
to enjoy oneself in a lively and noisy way; to take great pleasure in
Example
They revel in their success.
他们沉浸在成功中。
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。
B1 noun /ˌrɛzəˈluːʃən/

resolution

解决, 决议
Meaning
The action of solving a problem, dispute, or contentious matter.
Example
The resolution of the issue requires careful planning and action.
解决问题需要仔细的计划和行动。
B2 noun /reɪdʒ/

rage

愤怒
Meaning
intense anger or fury
Example
She shouted in a fit of rage after hearing the news.
她听到消息后在愤怒中大喊。
C1 adjective /rɪˈmiːdiəl/

Remedial

补救的; 修正的; 治疗的;
Meaning
intended as a remedy; corrective; providing a cure;
Example
The students need remedial classes to improve their math skills.
学生们需要补习课来提高他们的数学技能。
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。
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。
C2 adjective /rɪˈzɪstləs/

resistless

无法抗拒
Meaning
Impossible to resist; having an overpowering effect.
Example
She felt a resistless urge to laugh at the joke.
她感到无法抗拒的冲动，忍不住笑出声。
C1 noun /rɪˈdʒɪdəti/

Rigidity

刚性
Meaning
inability to bend or be forced out of shape; unwillingness to change or compromise
Example
The rigidity of the old system prevented any innovation.
旧系统的刚性阻止了任何创新。
B2 noun /ˌrɪəlɪˈzeɪʃən/

realization

实现
Meaning
the act of becoming fully aware of something as a fact
Example
Her realization of the problem helped solve the issue.
她对问题的实现帮助解决了问题。
B2 adjective /ˈreɪʃəl/

racial

种族的
Meaning
relating to a race of people
Example
Racial equality is an important issue in many societies.
种族平等是许多社会中的一个重要问题。
C1 verb /ˈrɪvɪt/

rivet

用铆钉固定 / 吸引注意
Meaning
to fasten or secure with a rivet; to hold someone’s attention firmly
Example
The craftsman riveted the metal plates together.
工匠用铆钉把金属板固定在一起。
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。
B2 noun /ˈrɛzərvwɑːr/

reservoir

水库
Meaning
A large natural or artificial lake used as a source of water supply.
Example
The city built a new reservoir to ensure enough drinking water for its residents.
这座城市建造了一个新的水库，以确保为居民提供足够的饮用水。
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。
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.
B2 noun /ˌrep.ɪˈtɪʃ.ən/

Repetition

重复
Meaning
the action of repeating something that has already been said or written
Example
Constant repetition helps students memorize vocabulary effectively.
持续的重复帮助学生有效地记忆词汇。
C1 adjective /rɪˈtɜː.nə.bəl/

Returnable

可退还的
Meaning
able to be returned or given back
Example
The bottle is returnable for a deposit refund.
这瓶瓶子可以退还存款退款。
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。
C2 noun /roʊˈtʌn.də/

rotunda

圆形建筑
Meaning
a large circular building or hall, often with a dome
Example
Tourists gathered inside the grand rotunda of the capitol.
游客们聚集在国会大厦的宏伟圆顶大厅内。
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。
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。
C1 noun, adjective /ˈrɛvərənd/

reverend

牧师，尊敬的
Meaning
A title of respect used for members of the clergy; deserving deep respect.
Example
The Reverend gave an inspiring sermon at the church.
牧师在教堂发表了鼓舞人心的讲道。
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 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。
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 noun /ˈræpsədi/

rhapsody

激昂的歌曲/赞美
Meaning
an expression of great enthusiasm or an epic musical composition
Example
The singer’s performance was a rhapsody of emotions.
歌手的表演是一场情感的狂想曲。
B2 verb /ˌriː.kənˈsɪd.ər/

reconsider

重新考虑
Meaning
to think about something again, especially to change a decision or opinion
Example
She decided to reconsider her decision about moving abroad.
她决定重新考虑她关于移居国外的决定。
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。
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。