[] switch (sth) (over) (from sth) (to sth) | switch (between A and B)to change or make sth change from one thing to another（使）改变，转变，突变◆We're in the process of switching over to a new system of invoicing.我们正在改用新的发票系统。◆Press these two keys to switch between documents on screen.按这两个键就可以在屏幕上的文件间进行切换。◆The meeting has been switched to next week.会议已改在下周举行。 [] switch sth (with sth) | switch sth (over/around/round)to exchange one thing for another交换；转换；掉换；对调◆I'll switch desks with you if you want to be near the window.如果你想坐在靠窗的地方，我和你换一下桌子。SYNswap [] switch (sth) (with sb) | switch (sth) (over/around/round)to change jobs, work times, etc. with sb换班；掉换工作时间◆I managed to switch my shift with someone.我设法和别人换了班。SYNswap ●ˌswitch ˈoff/ˈon●ˌswitch sth ˈoff/ˈonto turn a light, machine, etc. off/on by pressing a button or switch关／开（电灯、机器等）◆I forgot to switch off my computer.我忘了关掉计算机。