I know all this

知道───know;这一切───All this

This is a matter I know little about.───这件事我不太知道.

When I call your name, shout out so that we know you're here.───当我叫到你的名字时请大声响应,以便大家知道你来了.

I know the reason whereat you are displeased.───我知道你为什么不快.

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.

Clive , as you know, your mother and I saw eye to eye about sending you to university.───克莱夫, 你知道,关于你上大学的事, 你母亲和我意见一致.

Do you know that boy?───你认识那个男孩 吗 ?

I don't really know, I'm just guessing.───我真的不知道, 我仅仅是猜想.

She was the nicest person I know.───她是我所认识的最和善的人.

You know perfectly well what I mean.

"You know I'm right!" she jeered.

Do you know the meaning of this word?

The husband is always the last to know.

Every man is best know to himself.