1. 清洁的，干净的；无病菌的，纯净的　 free from dirt; free from bacteria or anything impure
2. 新的，未用过的　 fresh; not yet used
3. 正派的；诚实的；纯洁的；正大光明的　 morally or sexually pure; fair or honest; not disobeying rules or laws
4. 整齐的；表面光滑的；规则的；匀称的　 having a smooth edge or surface; even; regular

　～ clothes　干净的衣服
　～ copy　誊清的稿件
　～ night　明亮的夜晚
　～ proof　（印刷）清样
　～ sheet　干净的床单
　～ sweep　大胜，全胜
　neatly ～　整洁
　thoroughly ～　绝对清洁

　Cats are very clean animals.　猫是非常干净的动物。
　Go down to my bedroom, and bring a clean shirt.　下楼到我卧室去，拿一件干净的衬衣来。
　You must change into a clean dress before we go out.　在我们出去以前，你必须换一件整洁的衣服。
　I was brought a clean plate.　给我拿了一个干净盘子。
　It was a clean room.　这是一个很整洁的房间。
　You'd better wrap a clean cloth around your wound in the arm till the wound closes.　你最好用干净布把臂上的伤口裹严。
　Please fetch me a clean handkerchief from my bedroom.　请你从我卧室拿一条干净的手帕来。
　A blunt knife won't make a clean cut.　钝刀子切不匀称。
　It is good to suck in such clean fresh air for a change.　换换环境，呼吸呼吸新鲜的空气，太好了。
　Don't worry about it; it's all good clean fun!　请放心，这是一个绝对正派、纯洁的消遣活动！
　They demanded the establishment of a clean government.　他们要求建立一个廉洁的政府。
　Neither hand is clean.　两只手都不干净。
　The room is tidy and clean.　这个房间整洁又干净。
　An unlaced shoe may be perfectly clean, but is not tidy.　未系鞋带的鞋可能是很干净的，但不能算是整齐的。
　His record is clean.　他历史清白。
　I'm not worried about the investigation because my hands are totally clean.　我不担心调查，因为我完全清白。
　You should keep the machine thoroughly clean.　你应该保持机器的绝对清洁。
　Be careful to keep your clothes clean.　小心不要弄脏衣服。
　I washed my sheet clean yesterday.　昨天我把床单洗干净了。
　It's so nice to sponge myself down in a hot bath; it makes me feel so much cleaner.　在热水澡盆里用海绵擦洗真舒服，它使我感觉清爽多了。
　Keep your language clean!　不要出口污言！

 ♣ as clean as a whistle
　非常干净的　very clean
　I want you to wash these dishes until they're as clean as a whistle.　我要你把这些碟子洗得非常干净。
　The feed-pipe is as clean as a whistle, so I'm afraid, if the oil is not getting through to the burner, the valve must be faulty.　送料管干干净净，所以我担心要是油不通过喷嘴，阀门一定有毛病。
 ♣ clean bill of health
1. 健康证书 fit certificate
　I just had a medical examination and the doctor gave me a clean bill of health.　我刚进行了体格检查，医生就给了我一份健康证书。
　I've been off work but I've got a clean bill of health.　我虽然不工作了，可我搞到了一张健康证书。
2. 无罪的证明 innocent certificate
　The stranger was suspected in the bank robbery, but the police gave him a clean bill of health.　这陌生人有抢劫银行案的嫌疑，可是警方认为他与该案无关。
 ♣ come clean
　〈非正〉坦白承认　 admit truthfully
　〔说明〕 come clean不用于被动结构，也不用于进行体。
　When he was caught, the criminal had to come clean and tell the police about all his crimes.　那个罪犯被捕后供认不讳，向警方交代了一切罪行。
　It's obvious you did it so you might as well come clean.　显而易见，那是你干的，因此你不妨全盘招供了。
 ♣ keep one's nose clean
　安分守己　stay out of trouble
　That short prison sentence has done Wilfred good. He's come out and determined to keep his nose clean in future.　威尔弗雷德受到的短期监禁对他有好处，他出来后决定今后洗手不干。
　If you don't learn how to keep your nose clean, you're going to end up in jail.　如果你不学会守法，你会进监狱的。
 ♣ live a clean life
　过正派清白的生活　be blameless
　He's lived a clean life and as a result his conscience is completely untroubled.　他过着正派清白的生活，因此完全问心无愧。
 ♣ make a clean breast of
　坦白交代　make a full confession of
　He made a clean breast of the whole secret.　他把一切秘密全盘托出。
　The police caught the hit-and-run driver and he made a clean breast of his crime.　警方抓住肇事逃逸的司机，他坦白交代了他的罪行。
　Don't be evasive. You'd better make a clean breast of everything.　别躲躲闪闪的，你还是全盘托出的好。
　We think lenient treatment should be accorded to those culprits who made a clean breast of their crimes.　我们认为，那些彻底交代罪行的罪犯，应得到从宽处理。
　Arthur worried because he cheated on the test, and finally he went to the teacher and made a clean breast of it.　阿瑟心中很不安，因为他考试作弊了，最后他到老师那里坦白了。
 ♣ make a clean sweep
　彻底清除　dispose of (everything)
　My roses got some sort of fungus infection so I decided to make a clean sweep and replace the lot with new healthy plants.　我的玫瑰花遭到真菌传染，因此我决定来一个彻底清除，用新的健壮的玫瑰来替代它们。
　They made a clean sweep of their old furniture and replaced it with brand new pieces.　他们把旧家具全部扔掉，换成崭新的家具。

 ♣ clean, cleanly
　这两个形容词的共同意思是“干净的”“整洁的”“整齐的”。其区别在于：clean意为“干净的”“清洁的”，强调没有尘污，从没用过或清洗后还没用过等情况，强调的是即时状态；cleanly强调某物是“一贯清洁的”，某人是“爱清洁的”，强调的是“经常性”。例如：
　It was a cleanly house.　这是一间一直很清洁的房子。
 ♣ clean, tidy
　这两个形容词的共同意思是“干净的”“整洁的”“整齐的”。其区别在于：clean指没有尘污，从没用过或清洗后还没用过等情况；tidy表示整齐、有秩序、井井有条，也指有清洁习惯或把一间小屋子布置得清清爽爽。例如：
　He is very tidy and never goes out without combing his hair.　他很爱整洁，每次外出都要梳理一下头发。
 ♣ clean, clear
　clear　和clean的意思不同。clear的意思是“清澈”，指没有什么障碍物挡住视线；而clean的意思是“清洁的”。clear water意思是“清澈的水”，表示一眼望到底；而clean water意思是“清洁的水”，吃了不会生病。clean能修饰classroom等不透明物，而clear不能。

　完全地，彻底地　completely

　I clean forgot about it.　我把它完全忘记了。
　I clean forgot to ask him about it.　我完全忘了向他打听那件事。
　He clean forgot it was her birthday.　那天是她的生日，可他忘得一干二净。
　The room must be clean swept.　这屋子必须彻底打扫。
　The plan didn't work because it cut clean across the will of the masses.　那个计划完全违背了群众的意愿，因而行不通。
　The arrow flew clean to the center of the target.　箭不偏不歪，恰好射中靶中心。
　The prisoner got clean away and never seen again.　囚犯逃得无影无踪，再也没有看见他。
　You are clean wrong.　你完全错了。
　To make such a portrait is clean impossible.　画这样一个肖像完全不可能。

 ♣ clean through
　穿过，穿透　right through; without obstruction
　The bullet went clean through his arm.　子弹一直穿过他的臂膀。

 ♣ clean, cleanly
　clean　和cleanly用作副词时意思并不相同，前者意为“完全地，彻底”，后者则是“干净利落地”“准确无误地”。例如：
　He caught the ball cleanly.　他准确地接住了球。
　The knife doesn't cut cleanly through the meat.　这刀切肉不利落。

　vt. & vi.使清洁；变干净 make (sth) clean or free of dirt; become clean

　～ a wall of paint　去掉墙上的油漆
　～ a wound　把伤口洗净
　～ fish　把鱼拾掇干净
　～ flues　打扫烟道
　～ fowl　把家禽拾掇干净
　～ game　把猎物拾掇干净
　～ grain　把谷物里的杂物去掉，扬场
　～ one's shoes　把鞋子刷干净
　～ the blackboard　把黑板擦干净
　～ the classroom　打扫教室
　～ the slate　勾销往事，了结义务
　～ vegetables　洗菜
　～ weapons　擦拭武器
　～ generally　大扫除
　～ indifferently　漫不经心地打扫
　～ industriously　勤劳地清理
　～ orally　口头上清理
　～ passably　擦得尚干净
　～ scientifically　有条理地打扫
　～ spotlessly　极为清洁
　～ thoroughly　彻底弄干净
　～ away　清除
　～ down　刷干净
　～ down the dirt　扫下脏东西
　～ off　清除
　～ off a blackboard　把黑板擦干净
　～ out　清理，清除，除掉
　～ out one's desk drawers　清理书桌的抽屉
　～ out the animal shelter　清理畜生棚
　～ out the store　将商店洗劫一空
　～ up a city　清扫城市
　～ up on　胜过，击败
　～ up the movies　清除电影中的色情镜头

　The new rifle cleans easily.　新步枪容易擦干净。
　A porcelain sink cleans easily.　瓷水槽容易弄干净。
　These pots clean easily.　这些罐子很容易擦干净。
　I'm going to clean this morning.　今天早晨我要去搞清洁工作。
　Please don't leave your clothes lying about the room; it makes it difficult to clean.　请不要把衣服乱丢在房间里，这样很难洗涤。
　Please clean the blackboard.　请擦一下黑板。
　Use a moist, not damp cloth to clean the table.　用一块微干而不是潮湿的抹布将桌子抹干净。
　He wrote some letters, then he cleaned the car.　他写了几封信，然后清洗汽车。
　She cleaned two of the bedrooms in the morning.　她上午打扫了两间卧室。
　She spent a profitable day cleaning the house thoroughly.　这一天她过得很有成效，彻底清扫了房子。
　She was beating the rug to clean it.　她在敲打毛毯使其干净。
　The worker's work is to clean the chimneys for people.　那工人的工作是给人们清扫烟囱。
　She cleans her nails with a nailbrush every week.　她每星期用指甲刷把自己的指甲弄干净。
　The kitchen was cleaned to perfection.　厨房打扫得干干净净。
　The house had been cleaned after a fashion.　这所房子马马虎虎地打扫了一下。
　Rice is gathered, cleaned and hulled before being sold.　稻子先收割，弄干净，去壳，才出售。

 ♣ clean away　(v.+adv.)
　除去　remove (dirt, etc.)
　Do you think we can clean away all these finger marks?　你看我们能够把这些指痕统统去掉吗?
 ♣ clean down　(v.+adv.)
　把…洗干净　wash out thoroughly
　He spent a whole afternoon cleaning the whole house down.　他花了一整个下午，把屋子彻底打扫了一下。
　We were asked to clean down the walls when we left the house that we had been renting.　离开租住的屋子时，主人要求我们把墙冲洗干净。
　I'm going to clean down the car this afternoon.　今天下午我要把车彻底清洗一下。
　I want you to clean down the top of that wooden table until I can eat my dinner off it.　我要你把那张木头桌子的桌面擦洗干净，直到我能在桌面上吃饭为止。
 ♣ clean of　(v.+prep.)
　把（斑点、污渍等）从（某物）上清除掉　wash (sth) clean of (marks, dirt, etc.)
　〔说明〕 clean of常不用于进行体。
　Can you clean the coat of these dirty marks?　你能把这件外套上的污点洗掉吗?
　She felt that it was hopeless to try to clean her hand of the blood.　她感到她双手上的血迹是洗不干净的。
 ♣ clean off　(v.+adv.)
　除去　remove (dirt, especially surface dirt)
　〔说明〕 clean off不用于进行体。
　I hope these black marks will clean off.　我希望这些黑斑点能除掉。
　I hope I shall be able to clean off these black marks.　我希望我能把这些黑斑点除掉。
 ♣ clean out　(v.+adv.)
1. 把（某物）腾空，清除 empty, tidy, or clean (sth)
　He cleans out his desk drawers every now and then.　他过些时候就把书桌里的抽屉清理一下。
　Clean out your desk.　把你桌子内部清扫一下。
2. 打扫 make clean
　He cleaned out his room.　他打扫了房间。
　I need some to help in cleaning out the animal shelter.　我需要有人帮助我把牲畜棚打扫一下。
　Why don't you clean out your handbag? 　你为什么不把你的手提包收拾一下?
3. 肃清 eliminate
　The manager cleaned out inefficient personnel.　厂长把低效率人员精简掉了。
　The new mayor promised to clean the crooks out of the city government.　新上任的市长答应肃清市政府中的不良分子。
　Inefficient personnel were cleaned out of the management.　管理人员中办事效率不高的被清除了出去。
4. 〈非正〉使…失去钱财；使…耗尽资源 empty (a place) by robbing it (especially of money); leave sb without money
　〔说明〕 clean out不用于进行体。
　We played cards and he cleaned me out.　我们玩了纸牌，他把我的钱全赢光了。
　I've no more savings now, buying the TV has cleaned me out.　我现在一点存款也没有了，买电视机把我的钱花光了。
　She cleaned out her savings in a short time.　她在短时间内把全部积蓄都花光了。
　The robbers cleaned the bank out, and got away with ￡100,000.　强盗把银行洗劫一空，抢走了10万英镑。
　I'm cleaned out after last night's heavy spending.　昨晚大手大脚地花钱，弄得我现在囊空如洗。
　Another jeweler's was cleaned out of all its stock on Saturday night.　星期六晚上，又一家珠宝店被洗劫一空。
5. 离开 leave (usually in a hurry)
　〔说明〕 clean out不用于进行体。
　The thieves took the jewels and then cleaned out.　那些贼拿了首饰，匆匆而去。
 ♣ clean up　(v.+adv.)
1. 打扫；清理 free from a state of ruin
　This room needs cleaning up.　这个房间需要打扫一下。
　As soon as I finish cleaning up, I'll join you.　打扫完毕我就来。
　You should always clean up after a picnic.　野餐后你们要收拾干净。
　Boys and girls, clean up for dinner.　孩子们，收拾干净准备开饭吧！
　Let me clean up the broken glass before someone walks on it.　我来把碎玻璃扫掉，以免有人踩上。
　They are cleaning up the house before moving in.　他们在搬进去之前正在屋子里大扫除。
　He has cleaned up the room.　他已经清扫了这屋子。
　It's your turn to clean up the bedroom.　这回轮到你打扫卧室了。
　Tell him to clean the table up.　叫他把桌子收拾干净。
　He cleaned the paper and rubbish up on the floor.　他把地上的废纸和脏东西收拾干净。
2. 〈口〉赚钱，发财 make money
　〔说明〕 clean up通常不用于进行体。
　The brothers cleaned up a profit in the property market.　那哥几个在房地产市场捞了一笔钱。
　They cleaned up a tidy sum by selling their tickets at a high price just before the concert.　在音乐会开始之前，他们高价出售门票，赚了不少钱。
　The company cleaned up on its recent business arrangement.　那家公司在最近的业务中赚了一笔钱。
3. 在…进行扫荡；消灭 eliminate remaining enemy resistance from; eliminate (enemy forces, etc.)
　They fought bravely to clean up the bandits.　他们英勇作战以肃清土匪。
　They left a company behind to clean up the last enemy positions.　他们留下一个连来清除敌人最后的几处阵地。
4. 痛打，击败 inflict a severe thrashing or decisive defeat on
　The boxer cleaned up on his opponent.　那位拳击手击败了他的对手。
　Far from welcoming criticism, he did all he could to clean up on his critics.　他根本不欢迎批评，相反，总是千方百计打击批评他的人。
5. 对…作最后处理，结清 make final disposal of, settle
　They clean up old debts.　他们结清了旧债。
　They clean up pending cases.　他们处理完了悬而未决的案件。
6. 整顿；实行改革 reform; introduce reforms
　The mayor tried to clean up the city, but to no avail. Criminal activities were still everywhere and the crime rate was still high.　市长试图整顿那个城市，但未能奏效。犯罪活动仍很猖獗，犯罪率仍然很高。
7. （给自己）洗脸〔洗手，洗澡〕 get (oneself) washed
　Wait for me. I have to clean up.　等等我，我必须洗洗手。
　I'll have to clean up and change clothes before I go to that party.　我必须洗个澡，换换衣服才去赴宴。
　When he cleaned up, we could hardly recognize him.　他清洗一番后我们几乎认不出他了。
　Just give me ten minutes to clean myself up; I'm covered in oil.　我浑身沾满了油污，给我十分钟时间让我洗一下。

 ♣ clean, cleanse
　这两个动词都可表示“使清洁，使干净”。其区别在于：clean是常用的普通词，指将某物或某处的污物、污垢清除掉；cleanse通常指用化学方法或用别的技术，如清洗剂等使之干净，为古英语用法。
 ♣ clean, sweep, wipe
　这三个词都有“清理，清扫”的意思。其区别是：sweep用在“打扫房间，拖擦地板”的场合，含有“扫在一起后把它清除掉”的意味；clean指“擦洗，去掉污垢”，并不注重采用何种手段；wipe多指“用布轻轻地”擦。
 ♣ 下面各短语的意思有些不同：

　clean　可以表示瞬间动作，也可以表示延续性动作。一般情况下，在与表示“某一点”的时间状语连用时，用一般时态，是瞬间动词；在与表示“某一段的”时间状语连用时，用进行时态，是延续性动词。试比较：

　［同义词］ adj. clear, dustless, immaculate, unsoiled, unstained adv. completely, entirely v. cleanse, dust, mop, rinse, scour, sweep, vacuum, wash, wipe, decontaminate, purify, sterilize
　［反义词］ adj. contaminated, dirty, impure, indecent, polluted, soiled v. pollute, soil
　［词源］　古英语clæne（清洁）