尽管星系相距遥远，但我们已经观测到它们会彼此碰撞。

Although galaxies are separated by large distances, they have been observed to collide.

youdao

尽管星系相距遥远，但我们已经观测到它们会彼此碰撞。

Although galaxies are separated by large distances, they have been observed to collide.

youdao