trigger
noun uk/ˈtrɪɡ.ər/ us/ˈtrɪɡ.ɚ/
(GUN PART)
[ C ]（枪的）扳机
a part of a gun that causes the gun to fire when pressed
It's not clear who actually pulled the trigger. 不清楚究竟是谁扣动的扳机。
(START)
[ C usually singular ]（引起某种坏事的）一件事（或情况）
an event or situation, etc. that causes something to start
There are fears that the incident may be a trigger for more violence in the capital. 有人担心，这次事件可能在首都引发进一步的暴力活动。
[ C usually singular ] psychology specialized引发（难过、害怕等感觉）的原因，诱因
something that causes someone to feel upset and frightened because they are made to remember something bad that has happened in the past
A trigger is something that sets off a flashback, transporting the person back to the traumatic event. 诱因引发往事的重现，将人带回到创伤性的事件中。
trigger
verb [ T ] uk/ˈtrɪɡ.ər/ us/ˈtrɪɡ.ɚ/
C1 引起，引发（坏事）
to cause something to start
Some people find that certain foods trigger their headaches. 有些人发现某些食物导致他们头疼。
Ultraviolet-B radiation triggers the skin to produce vitamin D. 紫外线B的辐射会促使皮肤产生维生素D。
The racial killings at the weekend have triggered off a wave of protests. 周末发生的种族屠杀引发了抗议浪潮。
- More examples
- One type of diabetes is an auto-immune disease that may be triggered by a virus.
- The racial killings at the weekend have triggered off a wave of protests throughout the country.
- A vote of no confidence would trigger an election.
- The car crash triggered a lot of bad memories for me.
- We will never know what his motives were for the rampage and what triggered him.
- She can trigger you because she knows the right buttons to push.