know 还是 understand
know 还是 understand
understand what to say还是know what to say?
understand know区别 用法
know 和 understand
know understand recognize aware区别
understand to do 还是 understand doing 还是 understand do?
l understand还是l am understand
are you understand 还是do you understand
get to know and understand something是什么意思
understand与 you know有什么差别
I know ,I get it,I understand .
是I can't understand 还是I don't understand?