B2 noun /ˌreɡ.jʊˈleɪ.ʃənz/

regulations

规定

Meaning

Rules or directives made and maintained by an authority.

Example

Strict regulations ensure fair practices.

严格的规定确保公平的做法。

B2 verb /rɪˈfreʃ/

refresh

使清新

Meaning

to make fresh again; to restore energy

Example

A cold drink refreshes me on hot days.

冷饮在炎热的日子里让我感到清爽。

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。

B2 verb /ˈrʌm.bəl/

rumble

幸福

Meaning

to make a continuous deep, resonant sound

Example

Thunder rumbled in the distance.

当她收到奖项时，她无法隐藏自己的幸福。

B2 noun /roʊst/

Roast

烤肉

Meaning

Meat cooked by dry heat in an oven or over an open fire

Example

The Sunday roast was perfectly cooked and very tender.

周日的烤肉被煮得非常完美，肉质非常嫩。

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。

B2 adjective /rɪˈfreʃ.ɪŋ/

Refreshing

清新

Meaning

making one feel energized and renewed; pleasantly new or different

Example

The cool breeze was refreshing after the hot day.

在炎热的日子之后，凉爽的微风让人感觉清新。

B2 verb /rɪˈvɜːs/

reverse

反转

Meaning

to change something to the opposite direction, position, or result

Example

She quickly reversed the car out of the driveway.

她迅速把车从车道上倒了出来。

B2 noun ˌrev.əˈluː.ʃənz

revolutions

革命

Meaning

Dramatic and wide-reaching changes in political, social, or economic systems, often involving the overthrow of a government or social order.

Example

Revolutions often lead to significant societal changes.

革命常常导致社会变革的重要变化。

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。

B2 noun /ˈrem.ə.di/

Remedy

药物；治疗；补救办法

Meaning

a medicine or treatment for a disease; a solution to a problem

Example

This herbal remedy helps with headaches.

这种草药治疗有助于缓解头痛。

B2 noun/verb rɪˈfɔːm

reform

改革

Meaning

Make changes in (something, typically a social, political, or economic institution or practice) in order to improve it.

Example

Reform in the education system was a priority.

教育系统的改革是优先事项。

B2 adverb /rɪˈpɔːtɪdli/

reportedly

据报道

Meaning

according to what is said or believed, although not confirmed

Example

The company has reportedly agreed to the new terms.

公司 reportedly 已同意新的条款。

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。

B2 verb /rɪˈzɛmbəl/

resemble

像

Meaning

to look like or be similar to something or someone

Example

She resembles her mother in both appearance and mannerisms.

她在外貌和举止上都像她母亲。

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 noun /ˈrækɪt/

racket

球拍 / 喧闹

Meaning

A piece of equipment used to hit the ball in sports like tennis or badminton; also a loud noise or an illegal scheme.

Example

He bought a new tennis racket for the match.

他为比赛买了一把新网球拍。

B2 adjective /rɪˈflektɪv/

Reflective

反射的; 沉思的; 能反射光或图像

Meaning

thoughtful; contemplative; able to reflect light or images

Example

After the meeting, he was in a reflective mood.

会议后，他处于沉思的状态。

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 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。

B2 adjective /ˈrʌn daʊn/

run-down

破旧的

Meaning

in a poor condition; worn out or neglected

Example

They live in a run-down house at the edge of town.

他们住在城市边缘的一座破旧的房子里。

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。

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 adjective /rɪˈspek.tɪv/

Respective

各自的; 相关的

Meaning

belonging to each individual; particular to each

Example

The students returned to their respective classrooms after lunch.

学生们在午餐后回到了各自的教室。

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。

B2 noun /ˈreɪ.dɑːr/

Radar

雷达

Meaning

a system for detecting the presence, direction, distance of aircraft, ships by sending out radio waves

Example

The radar detected an unknown aircraft approaching the base.

雷达探测到一架未知的飞机接近基地。

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。

B2 verb /ˌriːˈbɪld/

rebuild

重建

Meaning

to build something again after it has been damaged or destroyed

Example

The villagers worked together to rebuild the bridge after the flood.

村民们一起努力，在洪水后重建了桥梁。

B2 adjective /rɪˈlaɪ.ənt/

reliant

依赖的

Meaning

depending on someone or something for support

Example

The country is too reliant on imported goods.

这个国家过于依赖进口商品。

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 verb /rɪˈteɪn/

retain

保持

Meaning

to keep possession of something

Example

The company decided to retain its experienced employees.

公司决定保留其经验丰富的员工。

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 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 /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 noun /rɛlm/

realm

Meaning

A kingdom or domain; a field or area of activity or interest.

Example

He is well known in the realm of science.

B2 verb /rɪˈfaɪn/

refine

改进

Meaning

to improve by making small changes; to purify

Example

The chef refines the recipe to perfection.

厨师将食谱完善到完美。

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。

B2 verb /rɪˈliːv/

relieve

Meaning

to make pain, distress, or difficulty less severe or serious

Example

The medicine helped relieve his headache.

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。

B2 noun /rɪˈvaɪ.vəl/

Revival

复兴

Meaning

an improvement in the condition or strength of something; renewed interest in or attention to something

Example

There has been a revival of interest in traditional crafts.

传统手工艺的兴趣得到了复兴。

B2 adjective /ˈrɪɡ.ər.əs/

rigorous

严格

Meaning

Extremely thorough and demanding in analysis or practice.

Example

A rigorous study plan helps students achieve better results.

严格的学习计划帮助学生取得更好的成绩。

B2 verb /ˈrɛkən/

reckon

推测

Meaning

To think, believe, or expect something; to calculate or estimate.

Example

I reckon it will rain later today.

我猜今天稍后会下雨。

B2 noun /ˈrɪə.lɪ.zəm/

realism

现实主义

Meaning

The quality of representing things as they are; a practical or factual view.

Example

Her paintings are admired for their realism.

她的画作因其现实主义而受到赞赏。

B2 verb /ræm/

ram

Meaning

to strike or push something with great force

Example

The truck rammed into the wall.

B2 verb /ˌriːjuˈnaɪt/

reunite

重聚

Meaning

to bring together again after separation

Example

The family was reunited after many years.

这个家庭在许多年后重新团聚。

B2 noun /ˈruːmər/

Rumour

流言; 八卦; 新闻

Meaning

a currently circulating story or report of uncertain or doubtful truth; gossip

Example

There's a rumour that the company will close next month.

有传言说公司将在下个月关闭。

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。

B2 noun /ˈreɪ.zɪnz/

Raisins

葡萄干

Meaning

dried grapes, often used in cooking and baking

Example

She added raisins to the oatmeal cookies for extra sweetness.

她在燕麦饼干中加入了葡萄干，以增加甜味。

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 verb /rɪˈnuː/

renew

Meaning

to make something new again or extend its period of validity

Example

I need to renew my passport before traveling.

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 adjective /ˈrɪdən/

ridden

充斥

Meaning

Full of or dominated by something unpleasant.

Example

The country was ridden with corruption.

这个国家充斥着腐败。

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。

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 /ˈrɔɪəlti/

royalty

皇室成员 / 特许权使用费 (作者收入)

Meaning

Members of a royal family or payment made to the owner of a patent, copyright, or natural resource.

Example

The author receives a royalty for every book sold.

作者从每本卖出的书中获得特许权使用费。

B2 adjective ˈræd.ɪ.kəl

radical

能够带来根本性变化，反对传统的信仰或系统

Meaning

Capable of bringing fundamental changes opposite to conventional beliefs or systems.

Example

The leader proposed radical economic reforms.

领导人提议进行激进的经济改革。

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 noun /ˈriːteɪlər/

retailer

零售商

Meaning

a person or business that sells goods to consumers rather than to other businesses

Example

The retailer offers discounts on electronic products.

零售商提供电子产品的折扣。

B2 noun /ˌref.jʊˈdʒiː/

Refugee

难民

Meaning

a person who has been forced to leave their country in order to escape war, persecution, or natural disaster

Example

The refugee camp provided temporary shelter for thousands of displaced families.

难民营为成千上万的流离失所的家庭提供了临时庇护。

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 noun /rɪm/

rim

边缘

Meaning

the outer edge or border of a circular object

Example

The coffee cup had a chip on its rim.

咖啡杯的边缘有个裂痕。

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。

B2 noun /ˈruːmər/

rumor

谣言

Meaning

a currently circulating story or report of uncertain or doubtful truth.

Example

There’s a rumor that the company will merge next year.

有传闻说公司明年将合并。

B2 noun /rɪˈsɪp.i.ənt/

Recipient

接收者

Meaning

a person who receives something

Example

She was the recipient of the prestigious award.

她是这个著名奖项的接收者。

B2 verb /roʊm/

roam

漫游

Meaning

to walk or travel without a specific destination; to wander

Example

Wild animals roam freely in the forest.

野生动物在森林中自由漫游。

B2 adverb /rɪˈɡɑrdləs/

regardless

不管

Meaning

without paying attention to the current situation or condition

Example

She will go to the party regardless of the weather.

她将去派对，不管天气如何。

B2 noun /rɪˈmeɪn.dər/

Remainder

剩余部分; 剩下的东西

Meaning

the part that is left over; what remains after the other parts have been taken away

Example

The remainder of the food was stored in the refrigerator.

剩下的食物被存放在冰箱里。

B2 noun /ˈruːstər/

rooster

公鸡

Meaning

A male domestic chicken, especially one that crows.

Example

The rooster crowed at dawn, waking up the whole village.

公鸡在黎明时分打鸣，唤醒了整个村庄。

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。

B2 adjective /rɪˈsɔːrsfəl/

resourceful

Meaning

Having the ability to find quick and clever ways to overcome difficulties.

Example

She is very resourceful when it comes to solving unexpected problems.

B2 noun /ˌriː.əˈʃʊr.əns/

Reassurance

安慰

Meaning

comfort or confidence given to someone to remove their fears or doubts

Example

She needed reassurance that everything would be okay.

她需要得到安慰，以确认一切都会好起来。

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.

B2 verb /rɪˈkɔːl/

recall

回忆

Meaning

to bring (a memory, fact, or situation) back into one's mind

Example

I can't recall the last time we met.

我记不得我们上次见面是什么时候。

B2 adjective ˌriːprəˈdʌktɪv

reproductive

繁殖的

Meaning

Relating to the reproduction of offspring.

Example

The reproductive cycle of pests can cause rapid infestations.

害虫的繁殖周期可能导致快速的感染。

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。

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 noun ˌreɪdɪˈeɪʃən

radiation

辐射

Meaning

The emission of energy as electromagnetic waves or as moving subatomic particles.

Example

Radiation from the sun can be harmful without protection.

太阳的辐射没有保护可能是有害的。

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。

B2 verb /ˌriːkriˈeɪt/

recreate

重新创建

Meaning

to create or produce something again, especially a new version of something lost or destroyed

Example

The team recreated the lost dataset from backups.

团队从备份中重新创建了丢失的数据集。

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 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。

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。

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。

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。

B2 adverb /ˈræp.ɪd.li/

Rapidly

快速地; 迅速

Meaning

at a fast speed; quickly

Example

The company is rapidly expanding into new markets.

公司正在迅速拓展新市场。

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。

B2 adjective /rɪˈliːvd/

relieved

松了一口气

Meaning

feeling happy and less worried after something stressful has been removed or resolved

Example

She felt relieved after hearing the good news.

听到好消息后，她感到松了一口气。

B2 noun /ˈroʊstɪd miːt/

Roasted meat

烤肉

Meaning

meat cooked by dry heat in an oven or over fire

Example

The roasted meat was perfectly seasoned and tender.

烤肉被完美地调味和变得嫩滑。

B2 noun rɪˈzɪl.i.əns

resilience

韧性

Meaning

The ability to recover quickly from difficulties; toughness.

Example

Testing the resilience of wood is crucial.

测试木材的韧性是至关重要的。

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。

B2 noun ˌrɛzɪɡˈneɪʃən

resignation

辞职

Meaning

The acceptance of something undesirable but inevitable; giving up.

Example

Her resignation from the position was unexpected.

她辞去了职位，这是出乎意料的。

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。

B2 verb /rɪˈtriːt/

retreat

撤退

Meaning

to move back or withdraw from a position or situation

Example

The soldiers had to retreat after losing the battle.

士兵们在失去战斗后不得不撤退。

B2 noun /ˈrɒbəɹi/

robbery

抢劫

Meaning

the crime of stealing from someone or somewhere using force or threat

Example

The police are investigating the robbery at the local store.

警方正在调查当地商店的抢劫事件。

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 verb /rɪˈzɪst/

resist

抵抗

Meaning

to oppose or fight against; to withstand

Example

He could not resist the temptation.

他无法抵抗诱惑。

B2 verb /ˈræl.i/

rally

Meaning

to come together for a common purpose or to recover strength or spirit

Example

The team rallied after halftime and won the match.

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。

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 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。

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。

B2 verb /rɪˈsaɪt/

recite

背诵

Meaning

To say aloud something learned, especially poetry or text, from memory.

Example

The child recited a poem in front of the class.

孩子在班级前朗诵了一首诗。

B2 noun ˌriːfɔːˈreɪʃən

reforestation

重新造林

Meaning

The natural or intentional restocking of existing forests and woodlands that have been depleted.

Example

Reforestation efforts are crucial to restoring ecosystems.

重新造林的努力对恢复生态系统至关重要。

B2 verb /ˈroʊ.teɪt/

rotate

旋转

Meaning

to turn around a central point or axis

Example

The Earth rotates on its axis once every 24 hours.

地球每24小时围绕其轴线旋转一次。

B2 verb /reɪn/

reign

统治

Meaning

to rule as a king or queen; to be dominant

Example

The queen reigned for over sixty years.

女王统治了超过六十年。

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。

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 verb /ˈrendər/

render

提供

Meaning

to provide or give; to make or cause to become

Example

The artist renders the scene beautifully.

艺术家美丽地渲染了场景。

B2 adjective /ˈrændəm/

Random

随机

Meaning

without pattern or predetermined order; happening by chance

Example

She selected a random book from the library shelf.

她从书架上挑选了一本随机的书。

B2 adjective /ˈrɪtʃ.u.əl/

Ritual

仪式

Meaning

relating to religious or ceremonial practices

Example

The wedding ceremony included many traditional ritual elements.

婚礼仪式包括许多传统的仪式元素。

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。

B2 verb rɪˈzaɪn

resign

辞职

Meaning

Voluntarily leave a job or other position.

Example

Ministers were forced to resign.

部长们被迫辞职。

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。

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。

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 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 adverb /rɪˈspektɪvli/

Respectively

分别；按照给定的顺序；分开且按已经提到的顺序

Meaning

in the order given; separately and in the order already mentioned

Example

John and Mary are 25 and 30 years old respectively.

约翰和玛丽分别是25岁和30岁。

B2 noun /ˈraɪfəl/

Rifle

步枪

Meaning

a gun with a long barrel that is fired from the shoulder

Example

The soldier carried a rifle during the mission.

士兵在任务中携带着步枪。

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。

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。