activate

英 [ˈæktɪveɪt]

美 [ˈæktɪveɪt]

v.  使活动; 激活; 使活化

过去分词：activated　现在分词：activating　第三人称单数：activates　过去式：activated　

考研TOEFLIELTSTEM8

Collins.1 / BNC.4543 / COCA.6113

牛津词典

verb

• 使活动；激活；使活化
  to make sth such as a device or chemical process start working
  1. The burglar alarm is activated by movement.
     这防盗警报器一动就会响。
  2. The gene is activated by a specific protein.
     这种基因由一种特异性蛋白激活。

柯林斯词典

• VERB 使运作；使起作用；激活
  If a device or processis activated, something causes it to start working.
  1. Video cameras with night vision can be activated by movement.
     带夜视镜的摄像机一有动静就会启动。
  2. ...a voice-activated computer.
     声控电脑

英英释义

verb

• make active or more active
  1. activate an old file
• make (substances) radioactive
• aerate (sewage) so as to favor the growth of organisms that decompose organic matter
  Synonym:aerate
• make more adsorptive
  1. activate a metal
• put in motion or move to act
  1. trigger a reaction
  2. actuate the circuits
  Synonym:tripactuatetriggerset offspark offsparktrigger offtouch off

双语例句