4 sentences

1. 你们中有人看见碰撞了吗？

   nǐ​men zhōng yǒu rén kàn jiàn pèng​zhuàng le ma?

   Did any of you see the collision?

   Source: OpenSubtitles

2. 碰撞使高速公路关闭了几个小时。

   pèng​zhuàng shǐ gāo​sù​gōng​lù guān​bì le jǐ​ge xiǎo​shí.

   The collision closed the highway for several hours.

   Source: CCMatrix

3. 地球上多样化的生态系统是否源于行星碰撞？

   dì​qiú shang duō​yàng​huà de shēng​tài​xì​tǒng shì​fǒu yuán​yú xíng​xīng pèng​zhuàng?

   Has the diverse ecosystem on Earth been born from planetary collisions?

   Source: CCMatrix

4. 大约再过40亿年，两个星系会发生碰撞。

   dà​yuē zài guò40 yì nián, liǎng​ge xīng​xì huì fā​shēng pèng​zhuàng.

   In about four billion years, the two galaxies will collide.

   Source: CCMatrix