Do you know what nationality she is
知道───know;民族───nation
I know you better than him.───我对你比对他更了解.
Do you know that boy?───你认识那个男孩 吗 ?
You're an ambitious man. You're not in politics for your health — that I know.───你野心勃勃, 想在政治上混出名堂来——这一点我是知道的.
Do you know the responsibilities of the government workers?───你知道政府工作人员的职责 吗 ?
Our next door neighbour is a real noesy parker . He always has to know everything about everybody on our street.───我们隔壁的邻居真是个包打听, 这条街上所有住户的事他都想知道.
These women electricians really know their job.───这些女电工真能干.
You don't know the facts, so keep your mouth shut!───你不了解情况, 别多嘴!
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.
I don't know if we can help-it all depends.
No, but I know him by sight.
To ask well is to know much.
Would you know your daughter, see her in company.
You may know the horse by his harness.