what is the matter with your sister?she is not feeling well.这句话中为何写well?good不行吗?

What is the matter? what is the matter? what is the matter? what is the matter what is the matter what is matter,what is the matter,what matter,what the matter的区别靠 what is the matter等于 what is the matter peter matter是什么意思那 what is the matter呢 What is the matter?等于What is the wrong? 是what the matter is 还是what is the mat 是what the matter is 还是what is the mat 谁能帮我翻译：what is the matter what is the matter的英文解释 英语翻译用what is the matter matter,is,them,what,with,the(? what is the matter with them 对么 翻译what is the matter ( ) your watch?