human beings humans区别?
human beings humans区别?
请问human,humans,human being,human beings它们有什么区别以及他们可以通用吗?
human ,human beings 区别
human humans的区别
being VS human beings 区别!
human beings与human being的区别
human humans区别(满意追加)
human beings are human beings
look like human beings 中为什么不是humans,being为什么还要加s
human与 humans有在含意什么区别
human being还是human beings?
human beings是什么意思?