He is an Englishman.为什么不是He is an English.可不可以He is a Chineseman.

问题描述:

He is an Englishman.为什么不是He is an English.可不可以He is a Chineseman.

可以说 He is an Englishman./He is English.He is a Chinese.不能说He is a Chineseman.