关于earth的短语？

关于earth的短语？

参考例句:

The earth goes round the sun.

地球围绕太阳运转.The earth turns round at a uniform rate.

地球以不变的速度旋转.People once held that the earth was flat.

人们曾经以为地球是平的.Rocky earth ploughs poorly.

多岩石的土地不适宜耕作.He said that the earth goes round the sun.

他说地球围着太阳转.