impact

撞击瞬间，安全气囊立即弹出。

Upon ___impact, the airbag deployed instantly.

碰撞的力量使车辆的前端凹陷了。

The force of the ___impact crumpled the vehicle's front end.

这个项目的环境影响将是巨大的。

The environmental ___impact of this project will be enormous.