"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，”老师说，“地球是什么形状的?”

　　“是圆形的，”杰拉尔德回答。

　　“你怎么知道是圆的?”老师继续问。

　　“好，那就是方的吧，”他回答说。“我真的不想和您争论这件事!”