What can go around the earth without rockets?
什么能不依靠火箭围绕着地球转？
It wants to go around the Earth twice, but it hits the Earth.
它希望绕地球两次，但是撞上了地球。
It takes one year for our earth to go all the way around the sun.
我们的地球围绕着太阳转一圈要花一年时间。
It takes one year for our earth to go all the way around the sun.
我们的地球围绕着太阳转一圈要花一年时间。
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