The Fourth Element

　　The Fourth Element

　　Teacher: What are the four element of nature?

　　Student: Fire, air, earth, and... and ...

　　Teacher: And what? Just think it over, what do you wash your hands with?

　　Student: Soap!

　　第四元素

　　老师：自然界的四大元素是什么?

　　学生：火、气、和。。。和。。。

　　老师：和什么?想一想， 你用什么洗手的?

　　学生：肥皂。