how did you know?和how do you know?前者和后者具体该在什么情况下用?

how did you know?和how do you know?前者和后者具体该在什么情况下用? How do you know? do you know how() how do you know how did you know that什么意思 how many do you know about和how much do you know about的区别 how do you do?和nice to meet you.在用法上有什么区别?什么情况下用? how did you know?与how do you know?的区别. How do I know you? Do you know how did the universe formed How do you know this 和How do you know that 有没有区别?有的话区别是什么? 吴镇宇会讲英语吗How did you know?