I happened to know about him.

我正巧了解一些有關(guān)他的情況。

We know about magnetism by the way magnets act.

我們通過磁鐵的作用知道磁性是怎么一回事。

As for your hope of winning the first prize,I don\\\'t know about that.

至于說到你在希望獲頭獎,對此我沒有多大把握。

Do you know anything about astronomy?

你懂天文學嗎?

He knows some damaging facts about the firm\\\'s dealings.

他知道該公司在經(jīng)營中的一些丑事。

David certainly knows a thing or two about car engines.

戴維肯定對汽車發(fā)動機非常在行。

I\\\'ll let you know all about it later on.

以后,我全讓你知道此事。

The two brothers are so much alike that even their own mother hardly knows them apart.

這兄弟倆長得如此相像,甚至他們的母親也很難識別。

Every actor ought to know his lines backwards before he goes on stage, as nervousness may make him forgetful.

所有演員在上臺前都應(yīng)當把臺詞記得滾瓜爛熟,因為一緊張就容易忘詞。

You can\\\'t fool me; I know the whole story backwards.

你騙不了我,這件事我了解得清清楚楚。

No, you really ought to stay in bed, remember,Mother knows best!

不,你真應(yīng)當臥床靜養(yǎng)。記住,母親說得最有道理!

Doctors should ask nurses their opinion, after all, they know the patients best.

醫(yī)生應(yīng)當征求護士們的意見,畢竟護士最清楚病人的情況。

You ought to have known better!

你怎么這么糊涂呢!

He ran away from school.He ought to have known better.

他從學校逃跑,他本來就應(yīng)該知道那是不對的。

She is old enough to know better than to spend all her money on clothes.

她長大了,應(yīng)該懂得不該把所有的錢都花在衣服上。

I thought you knew better than to go to such places as that.

我原以為你不至于糊涂到會上那些地方去。

You ought to know better than to go swimming on such a cold day.

你應(yīng)該知道，這樣冷的天是不該去游泳的。

You ought to know better than to damage the state property.

你應(yīng)該知道損壞國家財產(chǎn)是不對的。

He ought to know better than to come into the house without knocking at the door.

他該懂得不敲門是不能進屋的。

She certainly knows better than to tackle such problems by herself.

她那么明智的人當然不至于自個兒去解決這類問題。

They knew better than to come to my front door.

他們挺聰明的,沒有跑到前門去。

You will know the house by its tall chimneys.

看到那些大煙囪你就會認出那所房子。

I have never met our new neighbors; I simply know them by sight.

我從未接觸過我們的新鄰居,只見過面。

I know that poem by heart.

我可以背誦那首詩。

Shall I let you know by letter or by word of mouth?

我寫信告訴你還是口頭通知你?

Let me know it immediately by telephone.

馬上打電話通知我。

You must keep repeating the lines until they are known by heart.

你必須反復(fù)朗讀這幾行,一直到能背誦為止。

I know fine that he\\\'s not to be trusted.

我很清楚他是不可信的。

We know fine that\\\'s a good idea.

我們很清楚那是個好主意。

It is known for its handicraft products.

這地方因出產(chǎn)手工藝品而聞名。

The place is nationally known for its melons and fruit, especially its seedless grapes.

這里的瓜果,尤其是無核葡萄馳名全國。

I know you for a thief and a liar!

我算認識你了,一個又偷又騙的家伙!

You\\\'d better first know a friend from an enemy.

你得首先分清敵友。

They\\\'re twins and it\\\'s almost impossible to know one from the other.

他們是孿生子,旁人幾乎無法辨別。

He doesn\\\'t know a knife from a fork.

他連刀叉也分不清。

Don\\\'t listen to him, he doesn\\\'t know a hawk from a handsaw.

別聽他的,他什么也分不清。

We must learn to know good from evil.

我們要學習區(qū)分善惡。

It\\\'s important for one to be able to know right from wrong.

對一個人來說,能分辨是非非常重要。

I don\\\'t know the writer, but I know of him.

我不認識這個作家,但我是曉得他的。

Do you know of any oil-filling station around here?

你知道這一帶有加油站嗎?

What do you know of this theatre company?

這個劇團的情況你知道些什么?

“Has he gone to Shanghai?”“ Not that I know of.”

“他到上海去了嗎?”“據(jù)我所知他并沒有去。”

He would wish that he had never known of it.

他但愿自己根本不曉得這件事。

I know of a shop where you can buy things like that.

我聽說過有一家商店,在那里,你可以買到那些東西。

I know of his books, but I haven\\\'t read any of them.

我聽說過他寫的書,但一本也沒有讀過。

Such a kind of thing has never been known of before.

這種事情以前聞所未聞。

He thought he knew his wife through, until she deceived him.

在妻子騙他之前,他一直認為自己非常了解她。