trigger
名词 trigger:
lever that activates the firing mechanism of a gun
同义词:gun trigger
a device that activates or releases or causes something to happen
an act that sets in motion some course of events
同义词:induction, initiation
动词 trigger:
put in motion or move to act
同义词:trip, actuate, activate, set off, spark off, spark, trigger off, touch off
release or pull the trigger on