device  
noun [ C ] uk/dɪˈvaɪs/ us/dɪˈvaɪs/
  (MACHINE)      
 B2 装置,器械
an object or machine that has been invented for a particular purpose
  a contraceptive/electronic device 避孕器具/电子装置 
 Rescuers used a special device for finding people trapped in collapsed buildings. 救援者使用特殊器械来寻找被困在倒塌建筑物下面的人。 
 Synonyms: appliancecontraptiongadgetgizmo widget
 - More examples
 - The listening device was concealed in a pen.
 - The president's car is equipped with a homing device as a security measure.
 - It's an artificial device that stimulates the auditory areas of the brain.
 - We have a device that switches the lights on at a preset time in the evening.
 - A mouse is a device that makes it easier to select different options from computer menus.
 
  (METHOD)      
  (以期达到某种特定效果的)方法,手段
a method that is used to produce a particular effect
  a literary/rhetorical device 文学/修辞手法 
 A trademark can be a powerful marketing device. 商标可以是一种强有力的营销手段。 
 [ + to infinitive ] Her cool manner is just a device to avoid having to talk to people. 她冷漠的表现只是避免与人交谈的一种手段。 
   (BOMB)      
 炸弹;爆炸装置
a bomb or other explosive
  an explosive/incendiary/nuclear device 爆炸装置/燃烧弹/核爆炸装置