有以下区别:(一)human强调“人群”,human being强调“个人”,基本上 human = human beings ,但不可以说 human = human being(二)在一些惯用的表达,两者不能互换,例如疾病的“人传人”叫human to human transmission,但不可以说 human being to human being transmission.(三)human可以做形容词,human being不可以。