The Sierra Club is a very good and a very powerful force for conservation and, as a matter of fact, has grown faster since I left than it was growing while I was there! It must be doing something right.
塞拉俱乐部是一个非常好的，非常强大的保护力量，事实上，自从我离开以来，它的发展速度比我在那里的时候还要快!一定是做对了什么。
标签
Good
Conservation