Gerald， asked the teacher， what is the shape of the earth?

It's round， answered Gerald.

How do you know it's round? continued the teacher.

All right， it's square then， he replied， I really don't feel like getting into an argument about it!

杰拉尔德，老师问：地球是什么形状？

是圆形的，杰拉尔德回答道。

你怎么知道是圆的？老师又问。

好吧，那它是方的，学生回答说：我可不想与你争论这件事情。