what are you doing?你在做什么 what are you doing to dowhat are you doing?你在做什么what are you doing to do?这两个句子有什么区别?
问题描述:
what are you doing?你在做什么 what are you doing to do
what are you doing?你在做什么
what are you doing to do?
这两个句子有什么区别?
答