You use all to emphasize that something is completely true, or happens everywhere or always, or on every occasion.
He loves animals and he knows all about them.
他热爱动物,并且对动物无所不知。
He was doing it all by himself.
全都是他独自一个人干的。
All is used in structures such as all the more or all the better to mean even more or even better than before.
The living room is decorated in pale colours that make it all the more airy.
这个客厅用浅色装饰,显得更加清爽通风。
You use all when you are talking about an equal score in a game. For example, if the score is three all, both players or teams have three points.
You use all to indicate that you are referring to the whole of a particular group or thing or to everyone or everything of a particular kind.
There is built-in storage space in all bedrooms.
所有卧室里都有内置储藏空间。
He was passionate about all literature.
他对所有文学作品都有热情。
You use all to refer to the whole of a particular period of time.
George had to cut grass all afternoon.
乔治不得不整个下午都割草。
You use all in expressions such as in all sincerity and in all probability to emphasize that you are being sincere or that something is very likely.
In all fairness he had to admit that she was neither dishonest nor lazy.
公正地说,他不得不承认她既非不诚实也非懒惰。
for all
You use for all to indicate that the thing mentioned does not affect or contradict the truth of what you are saying.
For all its beauty, Prague could soon lose some of the individuality that the communist years helped to preserve.
尽管布拉格美不胜收,但是它可能会很快失去在共产主义时期存留下来的一些特色。
of all
You use of all in expressions such as of all people or of all things when you want to emphasize someone or something surprising.
One group of women, sitting on the ground, was singing, of all things, 'Greensleeves'.
一群席地而坐的妇女唱的偏偏是《绿袖子》。
of all the X
You use of all in expressions like of all the nerve or of all the luck to emphasize how angry or surprised you are at what someone else has done or said.
Of all the lazy, indifferent, unbusinesslike attitudes to have!
竟然有如此懒惰、冷漠、不认真的态度!
all of
You use all of before a number to emphasize how small or large an amount is.
It took him all of 41 minutes to score his first goal.
用了足足有41分钟他才进了第一个球。
all but
All but a particular person or thing means everyone or everything except that person or thing.
The general was an unattractive man to all but his most ardent admirers.
除了他的那些最热切的仰慕者以外,这位将军对于其他人并无吸引力。
in all
In all means in total.
There was evidence that thirteen people in all had taken part in planning the murder.
有证据表明总共有13个人参与策划了这起谋杀。
all in all
You use all in all to introduce a summary or general statement.
We both thought that all in all it might not be a bad idea.
我们俩都认为总的来说这可能不是个坏主意。
above all
You say above all to indicate that the thing you are mentioning is the most important point.
Above all, chairs should be comfortable.
首先椅子应该舒适。
and all
You use and all when you want to emphasize that what you are talking about includes the thing mentioned, especially when this is surprising or unusual.
He dropped his hot dog on the pavement and someone's dog ate it, mustard and all.
他把热狗掉在了街上,不知谁的狗给吃了,连带芥末都吃了个精光。
at all
You use at all at the end of a clause to give emphasis in negative statements, conditional clauses, and questions.
Robin never really liked him at all.
罗宾根本从来没有真正喜欢过他。
for all
You use for all in phrases such as for all I know, and for all he cares, to emphasize that you do not know something or that someone does not care about something.
For all we know, he may not even be in this country.
说不准,他或许都已不在这个国家了。
of all
You use of all to emphasize the words 'first' or 'last', or a superlative adjective or adverb.
First of all, answer these questions.
首先,回答这些问题。
after all
You use after all when introducing a statement that supports or helps explain something you have just said.
I thought you might know somebody. After all, you're the man with connections.
我想你可能认识什么重要人物。毕竟,你交游甚广。
You use after all when you are saying that something that you thought might not be the case is in fact the case.
I came out here on the chance of finding you at home after all.
我到这儿来心想也许会在家找到你,没想到竟然还真是。
that's all
You can say that's all at the end of a sentence when you are explaining something and want to emphasize that nothing more happens or is the case.
'Why do you want to know that?' he demanded.—'Just curious, that's all.'
“你为什么想了解它?”他索问道。—“只是好奇,仅此而已。”
all but
You use all but to say that something is almost the case.
The concrete wall that used to divide this city has now all but gone.
这堵曾经被用来分隔这座城市的水泥墙现在差不多不存在了。
all that
You use all that in statements with negative meaning when you want to weaken the force of what you are saying.
He wasn't all that much older than we were.
他当时并不比我们大多少。
all very well
You use all very well to suggest that you do not really approve of something or you think that it is unreasonable.
It is all very well to urge people to give more to charity when they have less, but is it really fair?
鼓励那些自身并不富裕的人更多地投身慈善事业固然是好,但这么做真的公平吗?
You use all to indicate that you are referring to the whole of a particular group or thing or to everyone or everything of a particular kind.
the restaurant that Hugh and all his friends go to.
休和他所有的朋友们去的那家饭馆。
You use all to refer to the whole of a particular period of time.
She's worked all her life.
她已经工作了一辈子。
You use all to indicate that you are referring to the whole of a particular group or thing or to everyone or everything.
The only salon produces its own shampoos and hair-care products, all based on herbal recipes.
唯一一家全部使用草本配方自产洗发水和护发用品的发廊。
You use all to emphasise that you are referring to the whole of a particular group or thing or to everyone or everything of a particular kind.
Milk, oily fish and eggs all contain vitamin D.
牛奶、油性鱼类和鸡蛋全都含维他命D。
You use all to refer to a situation or to life in general.
All is silent on the island now.
现在这个岛上一片寂静。
You use all at the beginning of a clause when you are emphasizing that something is the only thing that is important.
He said all that remained was to agree to a time and venue.
他说剩下的只是同意一个时间和地点。
All you ever want to do is go shopping!
你想做的事情就是购物!
You use all in expressions such as seen it all and done it all to emphasize that someone has had a lot of experience of something.
They've seen it all, so it takes a lot to rattle them.
他们已经全都见识过了,所以要费很大的劲儿才能让他们感到紧张。
You use all to indicate that you are referring to the whole of a particular group or thing or to everyone or everything of a particular kind.
He was told to pack up all of his letters and personal belongings.
他被告知整理好他的全部信件和个人物品。
You use all to refer to the whole of a particular period of time.
He spent all of that afternoon polishing the silver.
他那天的整个下午都花在了擦银器上。