- 赤道把地球分为两个半球。
The equator divides the globe into two hemispheres.
- 地球只不过是悬浮在太空中的一个球体。
The earth is just a sphere suspended in space.
- 从太空里看，地球是个十分美丽的星球。
Seen from space, the earth is very beautiful.
- 地球是由海洋和陆地组成的。
The earth is made up of sea and land.
- 以前的人不知道地球是圆的，也不知道地球是绕著太阳转的。
Formerly people did not know that the earth is round and that it moves round the sun.
- 严格来说，地球不是圆的。
Strictly speaking, the earth is not round.
- 地球比太阳小。
The earth is smaller than the sun.
- 他们以为地球是平的。
They believed that the earth was flat.
- 谁都知道地球是圆的。
There is no one but knows that the earth is round.
- 光一秒钟能够环绕地球七圈半。
Light travels around the earth seven and a half times a second.
