扳机

gōu bān jī

勾扳机

pull the trigger

kòu dòng le bān jī

扣动了扳机

press the trigger

tā kòu dòng bān jī píng zi dāng jí bèi dǎ de fěn suì

她扣动扳机，瓶子当即被打得粉碎。

She pulled the trigger and the bottle was shot to pieces.

tā tīng dào jiǎo bù shēng yuè lái yuè jìn biàn shǒu zhǐ jǐn kòu bān jī

她听到脚步声越来越近，便手指紧扣扳机。

Her finger tightened on the trigger as she heard footsteps approaching.