| 单词 | trigger |
| 释义 | trigger n. & v. --n 1. a movable device for releasing a spring or catch and so setting off a mechanism (esp. that of a gun). 2. an event, occurrence, etc., that sets off a chain reaction. --vtr. 1. (often foll. by off) set (an action or process) in motion; initiate, precipitate. 2. fire (a gun) by the use of a trigger. Phrases and idioms quick on the trigger quick to respond. trigger fish any usu. tropical marine fish of the family Balistidae with a first dorsal fin-spine which can be depressed by pressing on the second. trigger-happy apt to shoot without or with slight provocation. Derivatives triggered adj. Etymology: 17th-c. tricker f. Du. trekker f. trekken pull: cf. TREK |
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