trigger
US /ˈtrɪɡ.ɚ/
UK /ˈtrɪɡ.ɚ/

1.
2.
诱因, 起因, 导火索
an event or circumstance that is the cause of a particular action, process, or situation
:
•
The loud noise was the trigger for his anxiety attack.
巨大的噪音是他焦虑症发作的诱因。
•
Stress can be a major trigger for migraines.
压力可能是偏头痛的主要诱因。