impulse

On an impulse, he bought a plane ticket to Paris and left that same evening.

(Chinese) 他一时冲动买了一张去巴黎的机票，并在当天晚上就出发了。

She had to fight the impulse to scream when the spider crawled across her hand.

(Chinese) 当蜘蛛爬过她的手时，她不得不抑制住尖叫的冲动。

The rocket engine provides the necessary impulse to lift the satellite into orbit.

(Chinese) 火箭发动机提供了必要的冲量，将卫星送入轨道。

The airbag reduces injury by absorbing the impulse of the passenger during a collision.

(Chinese) 安全气囊通过在碰撞过程中吸收乘客的冲量来减轻伤害。