Teachers will never be replaced by computers.电脑永远取代不了老师。replace the old carpets更换旧地毯replace ♦︎ switch ♦︎ change ♦︎ exchange ♦︎ substitute ♦︎ swap ♦︎ trade ♦︎ reverse ♦︎ barterThese words all mean to remove sb/sth and put another person or thing in their place.这些词均表示替换、更换。PATTERNS AND COLLOCATIONS 句型和搭配◆to switch / change / exchange / substitute / swap / trade / barter A for B◆to replace / substitute / switch B with A◆to switch / exchange / swap / reverse A and B◆to replace / change a battery / bulb / fuse / tyre / wheel◆to switch / exchange / swap / reverse roles◆to change / exchange / swap / trade places◆to change / swap seats / clothes◆to exchange / swap / trade stories / jokes◆to exchange / swap experiences / news / phone numbers◆to exchange / trade insults◆to simply replace / switch / change / exchange / substitute / reverse sth◆to easily replace / switch / change / substitute / swap sth■replace [transitive] (ratherformal) to remove sb/sth and put a different or better person or thing in their place替换；接替；更换◆He will be difficult to replace when he leaves.他离职时，他的位置很难有人接替。◆All the old carpets need replacing.所有的旧地毯均要更换。◆She had an operation to replace both hips.她做了一次手术，替换掉两个髋关节。 see also replacement ⇨ exchange■switch [transitive] (ratherinformal) to put one thing in the place of another, and put the second thing in the place of the first交换；掉换；对调◆The dates of the last two exams have been switched.最后两门考试的日期掉换了。◆Do you think she'll notice if I switch my glass with hers?要是把我的杯子跟她的换了，你认为她看得出来吗？◆I see you've switched the furniture around(= changed its position).我看出来你把家具重摆了。■change [transitive] to replace one thing, person or service with sth new or different; to take sb else's position or place while they take yours替换，更换（东西、人或服务）；互换，交换（位置或座位）◆Marie changed her name when she got married.玛丽结婚后改了姓。◆That back tyre needs changing.那个后轮胎需要更换。◆At half-time the teams change ends.球队在半场时交换场地。◆Can I change seats with you?我可以和你换座位吗？◆I want to change my doctor.我想另找一位医生看病。ⓘ The usual word in American English used to talk about giving sth back for a better thing of the same kind, is exchange; this sounds rather formal in British English.在美式英语中， 表示换上更好的同类东西用exchange，这在英式英语中听起来相当正式◆ (BrE) We changed the car for a bigger one.我们换了辆更大的汽车。◆ (NAmE) We exchanged the car for a bigger one.我们换了辆更大的汽车。■exchange [transitive] to give sth to sb and at the same time receive the same type of thing from them; to give or return sth that you have and get sth different or better instead交换；交流；兑换；更换◆We use the forum to exchange ideas.我们利用这个论坛交流思想。◆I shook hands and exchanged a few words with the manager.我与经理握手，交谈了几句。◆Juliet and David exchanged glances(= they looked at each other).朱丽叶和戴维相互看了看对方。◆The two men exchanged blows(= hit each other).两个男人互殴起来。◆You can exchange your currency for dollars in the hotel.你可以在旅馆将钱兑换成美元。◆If it doesn't fit, take it back and the store will exchange it.如果不合适就把它拿回去，商店会给你换一个。 see also exchange ⇨ exchangenoun, exchange ⇨ discussionnoun■substitute [transitive] to use sb/sth instead of sb/sth else（用⋯）代替，取代◆Margarine can be substituted for butter in this recipe.做这道菜可以用人造黄油代替黄油。◆Butter can be substituted with margarine in this recipe.做这道菜可以用人造黄油代替黄油。◆Gerrard was substituted in the second half after a knee injury(= sb else played instead of Gerrard in the second half).下半场杰拉德膝盖受伤被换下。ⓘ You can substitute A for B or substitute B with A: in both cases you use A instead of B. You can also just say that you substitute sth: in this case the context needs to make clear whether the 'sth' is being used instead of sth, or is replacing sth else.可以说substitute A for B或substitute B with A，这两种说法均指用A代替B。还可以只说substitute sth，但这时必须能从上下文确定替换者和被替换者。 see also substitution ⇨ exchange■swap ( swop) /swɒp; NAmEswɑːp/ (-pp-) [intransitive, transitive] to exchange sth with sb交换；互换◆I've finished this magazine. Can I swap with you?这本杂志我看完了，我能跟你交换一下吗？◆I swapped my red scarf for her blue one.我用我的红围巾换了她的蓝围巾。◆We spent the evening in the bar swapping stories(= telling each other stories) about our travels.我们一晚上坐在酒吧里互聊各自的旅途经历。◆ (especially BrE) Can we swap places? I can't see the screen.咱俩换一下座位好吗？我看不见屏幕。ⓘ Especially in British English, swap can also mean to give or return sth that you have and get sth different or better instead.尤其在英式英语中，swap亦可指改换成别的东西◆I think I'll swap this sweater for one in another colour.我想把这件毛衣换成别的颜色。 see also swap ⇨ exchangenoun■trade [transitive] (especially NAmEorjournalism新闻) to exchange sth with sb交换；互换◆She traded her posters for his CD.她以海报换取他的CD。◆I wouldn't mind trading places with her for a day.我不介意和她掉换一天位置。◆Cabinet colleagues traded insults over the future of the pound.内阁同僚为英镑的未来互相谩骂。NOTE辨析 Switch, exchange, swap or trade?Switch is often used when one thing is exchanged for another without sb else being asked or even knowing about it. * switch常指未征询他人意见或在他人甚至不知情的情况下掉换◆The two babies had been switched at birth.两个婴儿在出生时已被掉换。◆The two babies had been exchanged/swapped/traded at birth.Exchange is more formal than swap or trade and is often used in fixed phrases when people look at or talk to each other. * exchange比swap和trade正式，常用于与相视或交谈有关的固定词组◆to exchange glances / a few words交换眼神；交谈几句◆to swap/trade glances/a few wordsYou can also exchange information/ideas. Swap is used more for physical things, although you can swap stories/jokes; trade is used for things and places, stories, jokes and insults in American English; in British English it is mostly used just for stories, jokes and insults, not physical things. In British English you change/swap places.还可以说exchange information/ideas（交流信息／思想）。swap多指交换实体的东西，但也可以说swap stories/jokes（互相讲故事／笑话）；trade在美式英语中的宾语为物品或places、stories、jokes及insults；在英式英语中的宾语主要是stories、jokes和insults，而非实体的东西。在英式英语中可以说change/swap places（换座位）。■reverse [transitive] to exchange the positions or functions of two people or things交换（位置或功能）◆It felt as if we had reversed our roles of parent and child.我们之间家长与孩子的关系好像倒过来了。◆She used to work for me, but our situations are now reversed.过去她为我工作，而现在我们的地位对调了。ⓘ In this meaning, reverse collocates with roles, situations and positions.表达此义时，reverse与roles、situations和positions搭配。 see also reversal ⇨ exchangenoun■barter [transitive, intransitive] to exchange goods, property or services for other goods, etc. without using money交换（货品、财产或服务）；以物易物◆The local people bartered wheat for farm machinery.当地人用小麦换取农机。◆The prisoners tried to barter with the guards for items like writing paper and books.囚犯试着从看守那里换得稿纸和书之类的东西。 see also barter ⇨ exchangenoun
exchange
noun
exchange ♦︎ replacement ♦︎ substitution ♦︎ swap ♦︎ barter ♦︎ reversalThese are all words for the act of giving sth to sb or doing sth for sb and receiving sth in return.这些词均表示交换、互换。PATTERNS AND COLLOCATIONS 句型和搭配◆an exchange / a swap / a reversal between A and B◆a direct exchange / replacement / substitution◆a straight exchange / swap◆a complete / total replacement / reversal◆to result in an exchange / the replacement / the substitution of sth■exchange [countable, uncountable] an act of giving sth to sb or doing sth for sb and receiving sth in return; the process of changing an amount of one currency(= the money used in one country)for an equal value of another交换；互换；兑换◆There was a brief exchange of glances.匆匆地互递了个眼色。◆Woollen cloth and timber were sent to Egypt in exchange for linen.毛料和木材被运往埃及去换亚麻布。◆I'll type your report if you'll babysit in exchange.如果你代我看孩子，我就帮你打报告。◆I get you out of the country and you keep your mouth shut. Is that a fair exchange?我帮你离开这个国家，你替我守住这个秘密，这算是公平交易吧？◆We have currency exchange facilities.我们有货币兑换服务。◆Where can I find the best exchange rate / rate of exchange?哪里有最好的兑换价？ see also exchange ⇨ replace2■replacement [uncountable] the act of replacing one thing with another, especially sth that is newer or better（尤指用新的或更好的物品）替换，更换◆Complete replacement of the roof tiles would be very expensive.全部更换天花板会很贵。◆The original furnishings are now in need of replacement.原来的家具陈设如今都需要更换。 see also replace ⇨ replace2, replacement ⇨ replacement■substitution /ˌsʌbstɪˈtjuːʃn; NAmEˌsʌbstɪˈtuːʃn/ [uncountable, countable] (ratherformal) the act of using sb/sth instead of sb/sth else代替；取代◆the substitution of low-fat spreads for butter用低脂的面包抹酱代替黄油◆Two substitutions were made during the game(= two players were taken off and two others sent on in their place).比赛中换了两次人。 see also substitute ⇨ replacement, substitute for sb/sth ⇨ replace1, substitute ⇨ replace2■swap ( swop) /swɒp; NAmEswɑːp/ [countable, usually singular] (especially BrE, ratherinformal, spokenorjournalism新闻) an act of exchanging one thing or person for another交换；换掉◆Let's do a swap. You work Friday night and I'll do Saturday.咱俩调个班吧。你星期五晚间上，我星期六上。◆Why not arrange a job swap with someone in another city or state?何不试着跟别的城市或别的州的人掉换工作？ⓘ Swap is often used by journalists as a short and rather informal way of saying exchange. However, it is not used in the wide variety of ways that exchange is used. You can do/make a swap, or be involved in a job/spy swap. * swap常为新闻记者使用，用作exchange简短而非正式的表达，但是用法不如exchange多。do/make a swap指进行掉换，job/spy swap指工作掉换或间谍交换。 see also swap ⇨ replace2, swap ⇨ switchverb■barter [uncountable] the act of exchanging goods or services for other goods, etc. without using money以物易物；劳务交换◆The islanders use a system of barter instead of money.岛上的居民买东西不用钱，而是以物易物。 see also barter ⇨ replace2■reversal [countable, uncountable] an exchange of positions or functions between two or more people（人员位置或功能的）互换，交换◆It's a complete role reversal / reversal of roles(= for example when a husband cares for the house and children while the wife works).这是一种彻底的角色互换。ⓘ In this meaning, reversal is almost always used in the phrases role reversal or reversal of roles.表达此义时，reversal几乎总是用于短语role reversal或reversal of roles。 see also reverse ⇨ replace2