问题描述： what are you doing what do you do,和what换成how4句都是什么意思 1个回答 分类：英语 2014-11-21 问题解答： 我来补答 what are you doing?你在干什么?what do you do?你做什么工作how are you doing how do you do?(问候语) 展开全文阅读
