(43周)Comets

Comets. Reading 1.

彗星。阅读一。

Comets are balls of ice.

彗星是由冰构成的球体。

Comets have dust inside.

彗星内部含有尘埃。

comments go around the Sun

彗星绕着太阳运行。

Sometimes, comets come near the sun.

有时候，彗星会靠近太阳。

You can see these comments from Earth.

你可以在地球上看到这些彗星。