human复数

human 可以加s humans = {human race},{humanity}, {humankind}, {human beings}, {mankind}, {man} 但好少见mankind 加s

复数：humanshuman解释：人类;人adj.人的;显示人类特有弱点的;人本性的;有人情味的;通人情的造句：1.The need to communicate is a key characteristic of human society.需要交流是人类社会最重要的一个特征。2.Scientists continue to push back the boundaries of human knowledge.科学家不断扩大人类知识的范围。3.The cost in terms of human life was high.付出了很大的生命代价。4.Contact with other people is a basic human need.和他人接触是人的基本需要。5.He"s really very human when you get to know him.你若了解他，就知道他确实很有人情味。6.Most of the problems were due to human error.多数问题都是人为错误造成的。

human 可以加s humans = {human race},{humanity}, {humankind}, {human beings}, {mankind}, {man} 但好少见mankind 加s

human 是集体名词. 当作为"人"来讲的时候,可以说复数是humans. 作为"人类"来讲的时候,没有复数形式,或者说复数形式就是human.