I pulled the trigger and the gun went off . 我一扣扳机，枪就响了。
He pulled the trigger but the gun did n't go off . 他打了一枪，没有发火。
Lucy pulled the trigger . 露西扣动了板机。
He made his shaking arm steady, then touched the trigger . 他把抖动的手臂稳下来，接着扣下扳机。
He reached for his empty gun, aimed, and pulled the trigger . 他伸手摸到那支空枪，瞄准了，扳动枪机。
Then he squeezed the trigger and the pebble spattered . 他赶快把扳机一扣，啪的一声，石子击了个粉碎。
Before he could even fumble at his belt, she pulled the trigger . 那人正要伸手到枪袋里，这边已经扳动扳机了。
He put the oblong of the foresight, onto the centre of the man's chest and squeezed the trigger gently . 他把长方形准星对准那人的胸膛中央，轻轻地扣动了扳机。
Because the larger the event, the larger the number of oscillations of the transducer before they decay below the trigger level . 因为事件越大，传感器在它衰减到低于触发器电平之前的振荡次数越多。
Class to indicate what action fired the trigger 类用来指示激发该触发器的操作。
