what are you saying?what did you say?的区别

问题描述:

what are you saying?what did you say?的区别

what are you saying?
进行时态
你在说什么啊?
说明说话的人还在说,我打断他然后说这句话
what did you say?
过去时态
你刚才说了什么啊?
说明说话的人说话完毕了,我回过头来又问他.