they are a policeman可以这么说吗?they are policemen 中的policeman是泛指吗?a policeman 不是也是泛指吗?那我这么说可以吗?he is plicemen 就行了!

问题描述:

they are a policeman可以这么说吗?
they are policemen 中的policeman是泛指吗?a policeman 不是也是泛指吗?
那我这么说可以吗?he is plicemen 就行了!

policemen是集体名词,可以只警察这个群体,也可以指单独的一个警察

不可以 they 是复数的表达
主语是单数的才能是a policeman 这就是英语的用法

应该是he is a policeman

不能。they are表示的是复数,a是指单数,会造成前后矛盾。应该是:they are policemen/he is a policeman.

应该是 they are policemen