Most volcanic activity occurs where these plates collide.

大多数火山活动发生在这些板块碰撞的地方。

Could planet sized objects have ever collided?

行星大小的物体曾经碰撞过吗？

What happens when the two passions collide?

当这两种东西激情碰撞时会发生什么?

Mountains are born when continental plates collide.

大陆板块的撞击诞生了山脉。

The initial thud comes from when those dorsal bursae collide.

最初的撞击声来自背侧黏液囊的碰撞。

Recently, we observed two neutron stars colliding.

最近，我们观测到两颗中子星相撞。

At least 57 people died when two trains collided near Larissa last Tuesday.

上周二，两辆火车在拉里萨附近相撞，造成至少 57 人死亡。

This is what happens when one of these firestorms collides with a community.

当大火侵袭一个社群时，就会发生这样的情况。

So when they collide, they destroy each other.

所以当它们相撞的时候，会摧毁对方。

Can you imagine what would happen if Earth collided with a huge space rock?

你能够想像地球如果撞上太空中的一颗巨大石块会怎么样吗？