2 sentences

1. 汽车的安全气囊能在碰撞时起到缓冲作用。

   qì​chē de ān​quán​qì​náng néng zài pèng​zhuàng shí qǐ​dào huǎn​chōng zuò​yòng.

   A car's airbags provide a cushioning effect during a collision.

   Source: Dong Chinese Dictionary

2. 安全气囊在车辆发生碰撞时会迅速充气弹出。

   ān​quán​qì​náng zài chē​liàng fā​shēng pèng​zhuàng shí huì xùn​sù chōng​qì tán​chū.

   Airbags inflate and deploy quickly during a vehicle collision.

   Source: Dong Chinese Dictionary