The largest asteroid is Ceres, which is about a quarter the size of the moon.
最大的小行星是谷神星，其体积大约是月球的四分之一。
The earth is 49 times the size of the moon.
地球的大小是月球的四十九倍。
The same size of the moon or larger than that?
会与月球一样大，还是比它大些？
Pluto has a moon, Charon, half the size of the planet.
冥王星唯一的卫星卡戎，大小是冥王星的一半。
"Europa is about the size of our own moon," Hand explains.
韩德解释说：“木卫二的体积与月球差不多。”
The moon is about one-fourth the size of the Earth in diameter.
月球的直径大约是地球的四分之一。
The moon is one-third the size of the earth.
月亮是地球的三分之一那么大。
The moon is one-third the size of the earth.
月亮是地球的三分之一那么大。
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