a device for making and breaking the connection in an electric circuit 开关 the guard hit a switch and the gate swung open. 守卫按了一下开关,大门就打开了。 ■(Computing)a program variable which activates or deactivates a certain function of a program (计算机)切换
an act of adopting one policy or way of life, or choosing one type of item, in place of another; a change, especially a radical one (政策,生活方式,挑选物品类型的)转变(尤指根本的改变) his friends were surprised at his switch from newspaper owner to farmer. 他的朋友对他由一个报纸业主转而成为农民感到吃惊。
a slender flexible shoot cut from a tree (树上砍下的)细软枝条
(N. Amer.)a set of points on a railway track (北美)(铁道的)道岔
a tress of false or detached hair tied at one end, used in hairdressing to supplement natural hair 假发
verb [with obj.]
change the position, direction, or focus of 改变(立场,方向,重点) the company switched the boats to other routes. 该公司改变了船的航线。 ■adopt (something different) in place of something else; change 改变,转变 she's managed to switch careers. 她设法变换了职业。 ■[no obj.]adopt a new policy, position, way of life, etc 转换(新政策,立场,生活方式等) she worked as a librarian and then switched to journalism. 她先是做图书管理员,然后改行到新闻界工作。 ■substitute (two items) for each other; exchange 调换;交换 after ten minutes, listener and speaker switch roles. 十分钟以后,听话者和说话者调换角色。
(archaic)beat or flick with or as if with a switch (古)击打;轻弹
派生 switchable adjective 语源
late 16th cent. (denoting a thin tapering riding whip): probably from Low German
继承用法 switch something off
turn off an electrical device 关上电器 ■(switch off)(informal)cease to pay attention (非正式)不再注意 as he waffles on, I switch off. 当他开始絮叨时,我就不再听了。