why does a man have beard but a woman not ?请问这个句子对吗

问题描述:

why does a man have beard but a woman not ?请问这个句子对吗

应改为 Why does a man have beard but a woman does not ?为什么男士有胡须而女士没有?

对,为什么男人有胡子而女人没有?

不对.
应该写成:why does a man have a beard but a woman doesn't?
天上~