switch noun ⇨button1 (a light switch)⇨change2 (a policy switch)switch verb ⇨replace2 (switch my glass with hers)⇨switch (switch over to a new system)switch
verb
switch ♦︎ change (sth) over ♦︎ convert ♦︎ swapThese words all mean to change or make sth change from one thing to another.这些词均表示改变、转变。PATTERNS AND COLLOCATIONS 句型和搭配◆to switch over / change over / convert from sth to sth◆to switch / change / swap over◆to switch / convert / swap easily■switch [intransitive, transitive] (ratherinformal) to change or make sth change from one thing to another改变;转变◆Press these two keys to switch between documents on screen.按这两个键,可以切换屏幕上的文件。◆The meeting has been switched to next week.会议改到下周举行。◆When did you switch jobs?你什么时候换了工作? see also switch ⇨ changenoun2■ˌchange ˈover■ˌchange sth ˈover
phrasal verb
to change or make sth change from one system or position to another改变(系统或位置)◆The farm has changed over to organic methods.农场已改用有机作业。◆We've changed the farm over to organic production.我们已经将农场改变为有机化生产。 see also change ⇨ changenoun2NOTE辨析 Switch or change over?Switch is more informal than change over and is often used in journalism. Change over is more often used with to than from. * switch不如change over正式,常用于新闻中。change over更常与to而非from连用◆to change over to nicotine gum / dairy farming / a nuclear policy改用尼古丁口香糖;改为养乳牛;转变为核政策Switch is often used to talk about moving between two opposite positions, or from an old-fashioned system to a new one. * switch常指在两个相反的位置之间移动,或从旧系统向新系统转换◆to switch over from recovery to relapse从康复转变为旧病复发◆to switch over to a metric standard / electronic mail改用公制标准/电子邮件■convertkənˈvɜːt; NAmEkənˈvɜːrt [intransitive] (ratherformal) to change a habit or opinion改变(习惯或观点)◆I've converted to organic food.我改吃有机食物了。 see also conversion ⇨ changenoun2■swap ( swop) swɒp; NAmEswɑːp(-pp-) [intransitive] to start doing sb else's job, etc. while they do yours交换(工作)◆I'll drive there and then we'll swap over on the way back.去的时候我开车,回来时咱俩再倒换过来。 see also swap ⇨ exchangenoun
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