dirty 是肮脏的意思,而foul则是臭的意思,区别可以从以下例子看出:
What is happening to my house, you have made it so dirty, also there is foul smell in the whole house. I have to get someone to clean it. 我家怎么了,你弄的这么脏,整个屋子都有臭味。 我得找人来打扫。
水利万物而不争,
而万物莫能与之争。