Middle是中间的意思,而 among 则是在其中的意思。区别可以从以下例子看出:
There are guy standing in the middle of this group, who is their leader, he is good in all area amount them. 这群人中间站着一个人,这是他们的领导,他在所有领域都很好。
水利万物而不争,
而万物莫能与之争。