Do you know when he will go to Beijing
知道───know;什么时候───when
She was the nicest person I know.───她是我所认识的最和善的人.
Fools never know when they are well off.───人若愚痴,有福不知.
I do know that flower, but I can't put a name to it.───我的确认识哪种花, 但叫不出名称.
This is a matter I know little about.───这件事我不太知道.
It is very useful for a person to know how to swim.───对一个人来说会游泳是很有用的.
His secret died with him, and now we shall never know the truth.───他的秘密随他一起离去, 现在我们永远也不可能知道真相了.
Don't ever let on to know me.───切记不要露出你认识我的样子.
Do you know that boy?───你认识那个男孩 吗 ?
Do you know the meaning of this word?
The husband is always the last to know.
I don't know if we can help-it all depends.
Would you know your daughter, see her in company.
You know perfectly well what I mean.