switch

switch
noun
  1. 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
  2. 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。
  3. a slender flexible shoot cut from a tree
    (树上砍下的)细软枝条
  4. (N. Amer.)a set of points on a railway track
    (北美)(铁道的)道岔
  5. a tress of false or detached hair tied at one end, used in hairdressing to supplement natural hair
    假发
verb
[with obj.]
  1. 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。
  2. (archaic)beat or flick with or as if with a switch
    (古)击打;轻弹
派生
switchable
adjective
语源
  1. late 16th cent. (denoting a thin tapering riding whip): probably from Low German
继承用法
switch something off
  1. 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。
switch something on
  1. turn on an electrical device
    打开电器
英语宝典
考试词汇表