1 sentence for 碰撞 (pèng​zhuàng — to collide)

1. 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