“小行星”造句

有一颗小行星可能会与地球发生碰撞。
There is an asteroid on a collision course with the Earth.

小行星, 亦称为 “ 小型行星 ”, 在外太空中不计其数.
Asteroids, also known as " minor planets ", are numerous in the outer space.

最大的小行星是谷神星,体积约为月球的1/4.
The largest asteroid is Ceres, which is about a quarter the size of the moon.

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