【repeat】to say or do again.
* Please repeat what you said.
请再重复一下你的话。

【report】(1) to tell about; (2) to give the results of a study or investigation; (3) the story about an event; (4) the results of a study or investigation; (5) a statement in which the facts may not be confirmed.
* She reported about her holiday in Europe. (1)
她跟我们讲述她在欧洲的假期。
* The scientist reported the results of his experiment. (2)
那位科学家汇报了他的实验结果。
* Did you read the newspaper report about the accident？ (3)
你看到报纸上关于那次事故的报道了吗？
* The director said he was pleased with our budget report. (4)
董事长说他对我们的预算报告很满意。
* A report said 260 people were killed. (5)
据报道，有260人丧生。

【represent】(1) to act in the place of someone else; (2) to substitute for; (3) to serve as an example.
* She represents the people who could not be here. (1)
她代表不能来的人。
* On this map, X represents where the treasure is buried. (2)
在这张地图上，X代表埋宝藏的地方。
* This statue represents the skills of the ancient artists. (3)
这座雕像表现了古代艺术家的技艺。

【repress】to control or to restrict freedoms by force.
* He repressed his people.
他镇压他的人民。

【request】(1) to ask for; (2) the act of asking for.
* She requested a glass of water. (1)
她要了一杯水。
* No one heard her request for help. (2)
没有人听到她的请求帮助。

【require】to need or demand as necessary.
* This job requires computer skills.
做这项工作要求具备计算机技术。

【rescue】to free from danger or evil.
* He rescued a little boy floating in the sea.
他救了一个漂在海上的小男孩。

【research】a careful study to discover correct information.
* He made the discovery after many years of research.
经过多年的研究，他终于有所发现。

【resign】to leave a position, job or office.
* The President has resigned.
总统辞职了。

【resist】(1) to oppose; (2) to fight to prevent.
* He resists all demands for new elections. (1)
他反对所有重新选举的要求。
demand for:要求…
* The baby resisted sleep for several hours. (2)
这孩子不想睡觉，已经有好几个小时了。

【resolution】an official statement of agreement by a group of people, usually reached by voting.
* The United Nations Security Council approved a joint cease-fire resolution.
联合国安理会通过了一个联合停火决议。
Security Council：安全理事会
United Nations Security Council：联合国安全理事会
National Security Council：国家安全委员会

【resource】anything of value that can be used or sold.
* Our coal supplies are a great energy resource.
我们的煤炭供应是一个巨大的能量资源。

【responsible】(1) having a duty or job to do; (2) being the cause of.
* He is responsible for preparing the report. (1)
他负责准备那份报告。
* They were responsible for the accident. (2)
他们要对事故负责。

【rest】(1) to sit, lie down or sleep to regain strength; (2) that which remains; (3) the others.
* You should rest after your long walk. (1)
你走了很长时间的路程，应该休息。
* Would anyone like the rest of my dinner? (2)
有谁愿意吃我剩下的食物？
* He spoke to the rest of them. (3)
他和其他人说了话。

【restrain】(1) to keep controlled; (2) to limit action by a person or group.
* He restrained his anger. (1)
他克制了他的怒火。
* Police restrained the protestors. (2)
警察制止住了抗议者。

【restrict】(1) to limit; (2) to prevent from increasing or becoming larger.
* The government restricted travel. (1)
政府限制旅游。
* The device restricts the car's speed. (2)
这个装置限定了汽车的速度。

【result】(1) to happen from a cause; (2) that which follows or is produced by a cause; (3) effect.
* The accident resulted from the thick fog. (1)
那起交通事故由于雾太大引起的。
* The test results showed she was pregnant. (2)
检查结果表明她怀孕了。
* As a result of the storm, no one could get to work. (3)
由于暴风雨的影响，没有人能够上班。
as a result of：由于…的结果

【retire】to leave a job or position because one is old or in poor health.
* He retired at age 55 and traveled for the rest of his life.
他55岁退休以后就一直旅游。

【return】(1) to go or come back; (2) to bring, give, take or send back.
* She returned home yesterday. (1)
她昨天回到了家。
* I returned the book to the library last week. (2)
我上星期把书还给了图书馆。

【revolt】(1) to protest violently; (2) to fight for a change, especially of government.
* Demonstrators will revolt if police try to arrest them. (1)
如果警察设法逮捕他们，示威者就会造反。
* Protesters revolted and seized several government buildings. (2)
抗议者发动了起义，并且占领了几座政府的大楼。

【rice】a food grain.
* Rice is a major food in much of the world.
大米是世界上大多数人的主食。

【rich】(1) having much money or goods; (2) having plenty of something.
* Her brother became a rich man. (1)
她哥哥成了一个富豪。
* Oil made Kuwait a rich country. (2)
石油使科威特成为一个富饶的国家。

【ride】(1) to sit on or in and be carried along; (2) to travel by animal, wheeled vehicle, airplane or boat.
* She and I ride horses every weekend. (1)
我和她每个周末都去骑马。
* I ride the subway to work. (2)
我乘地铁去上班。

【right】what a person legally and morally should be able to do or have; (2) agreeing with the facts; (3) good; (4) correct; (5) opposite wrong; (6) on the side that is toward the east when one is facing north; (7) opposite left.
* It is their right to vote. (1)
投票是他们的权利。
* You gave the right answer. (2)
你的回答是正确的。
* He is the right kind of person for the job. (3)
他是这份工作的合适人选。
* She always seems to do the right thing. (4)
她好像一直都在做正确的事。
* She said she was right and he was wrong. (5)
她说她是对的，而他错了。
* Our farm is on the right side of the river. (6)
我们的农场就在河的右侧。
* Turn right, not left, at the second street. (7)
走到第二条街的时候要往右拐，不是往左。

【riot】(1) to act with many others in a violent way in a public place; (2) a violent action by a large group of people.
* Prisoners rioted and started fires inside the prison. (1)
犯人发生暴乱，开始在牢房里放火。
* The riot spread from the football game to the streets. (2)
骚乱从足球场一直蔓延到大街上。

【rise】(1) to go up; (2) to go higher; (3) to increase; (4) to go from a position of sitting or lying to a position of standing.
* The moon will rise soon after the sun goes down. (1)
太阳落山后，月亮很快就会出来。
* The river is rising and spreading out. (2)
河水在上涨，往两岸蔓延。
* The temperature rises as the sun gets higher. (3)
太阳逐渐升高，温度也随着升高了。
* He rose to his feet as she walked into the room. (4)
当她走进房间里时他站了起来。

【risk】the chance of loss, damage or injury.
* He never considered the risk of a broken heart.
他从来没考虑过自己有会绝望的可能。
risk：可能性（如：a risk of frost. 有下霜的可能。）
broken heart：伤心，绝望，心碎

【river】a large amount of water that flows across land into another river, a lake or an ocean.
* Native Americans called the big river "the Father of Waters."
土著美洲人把那条大河称作“江河之父”。

【road】a long piece of hard ground built between two places so people can walk, drive or ride easily from one place to the other.
* The road was straight until it reached the mountains.
笔直的公路一直通到山脉。

【rob】(1) to take money or property secretly or by force; (2) to steal.
* Someone robbed his television. (1)
有人偷了他的电视机。
* The two men robbed her as she walked home from work. (2)
她在下班回家的路上被两个人抢了东西。

【rock】a hard piece of mineral matter.
* He threw a rock across the river.
他朝河对岸扔了一块石头。

【rocket】a device shaped like a tube that moves through air or space by burning gases and letting them escape from the back or bottom, sometimes used as a weapon.
* The huge rocket launched three men on a flight to the moon.
巨大的火箭载着三个人飞向月球。

【roll】(1) to turn over and over; (2) to move like a ball.
* The children rolled down the hill. (1)
孩子们从山上滚了下来。
* She rolled her eyes at his joke. (2)
他的笑话让她翻了翻眼睛。

【room】a separate area within a building with its own walls.
* The boy spent hours playing in his room.
这个男孩在他房间里玩了几个小时。

【root】the part of a plant that is under the ground and takes nutrients from the soil.
* The roots brought food to the big tree and held it firmly in the ground.
根部供应养料给大树，并牢牢地扎根于地下。

【rope】a long, thick piece of material made from thinner pieces of material, used for tying.
* The boy tied the end of the rope around the tree.
那个男孩把绳子的末端缠绕在树上。

【rough】(1) not flat or smooth; (2) having an uneven surface; (3) violent; (4) not made well.
* The rough floor was made of wood, split by hand. (1)
粗糙的地板，是用手工劈开的木头铺成的。
* We found rough ground at the top of the mountain. (2)
我们在山顶发现了一块高低不平的地面。
* The strong wind made a rough sea. (3)
海面上风大浪急。
* The rough wall of stones did not stand straight. (4)
石头砌成的粗糙墙面看上去不垂直。

【round】having the shape of a ball or circle.
* The stone plate was perfectly round.
那个石板非常圆。
stone plate：石板，石盘

【rub】to move something over the surface of another thing.
* The boy rubbed his hand over the cat's back.
那个男孩子抚摸着小猫的背。

【rubber】a substance made from the liquid of trees with the same name, or a similar substance made from chemicals.
* The ball was made of rubber.
这个球是用橡皮做成的。

【ruin】(1) to damage severely; (2) to destroy.
* The rain ruined the book he left outside. (1)
他的书在外面被雨水淋坏了。
* Time ruined the old building, leaving only fallen walls. (2)
岁月使这座旧楼成为废墟，只剩下残垣断壁。

【rule】(1) to govern or control; (2) to decide; (3) a statement or an order that says how something must be done.
* One party ruled the Senate; the other ruled the House of Representatives. (1)
一个政党统领参议院，另一个政党统领众议院。
* Five of nine Supreme Court judges ruled that the Republican should be President. (2)
最高法院的九位法官中有五人裁决共和党出任总统。
* The rules were not clear on how to count the votes. (3)
如何清点选票的制度还不太清楚。

【run】to move quickly by steps faster than those used for walking.
* Please walk, do not run, to the nearest door.
请走到最近的那扇门，不要跑过去。