美[?tr?ɡ?] 1 . Stress may act as a trigger for these illnesses.
壓力可能會成為引發這些疾病的原因。
來自柯林斯例句
2 . A man pointed a gun at them and pulled the trigger . 一名男子拿槍指著他們，接著扣動了扳機。來自柯林斯例句3. They were gunned down by members of the trigger -happy National Guard.
他們被那些肆意開槍的國民衛隊士兵槍殺了。
來自柯林斯例句
3 . Unresolved or unacknowledged fears can trigger sleepwalking.
殘留在心里的或不為人知的恐懼都可能引發夢游。
來自柯林斯例句
4 . A wide range of emotionally stressful events may trigger a relapse.
多種令人情緒緊張的事情都可能引起舊病復發.
來自《簡明英漢詞典》
1.lever that activates the firing mechanism of a gun
2.a device that activates or releases or causes something to happen
3.an act that sets in motion some course of events
1.put in motion or move to act;
trigger a reaction
2.release or pull the trigger on;
Trigger a gun
觸發器（trigger）是個特殊的存儲過程，它的執行不是由程序調用，也不是手工啟動，而是由事件來觸發，比如當對一個表進行操作（ insert，delete， update）時就會激活它執行。觸發器經常用于加強數據的完整性約束和業務規則等。 觸發器可以從 DBA_TRIGGERS ，USER_TRIGGERS 數據字典中查到。
