Our world is but a small part of the cosmos.我们的世界仅仅是宇宙的一小部分而已。

He's still but a child.他仅仅是个小孩子。

I want to say nothing but sorry.我只想说对不起。

He can but admit that it was his fault.他只得承认这是他的错误。

The watch was cheap, but it goes quite well.
这块表虽然便宜,但走得很好。

These changes will cost a lot, but they will save us money in the long run.
这些改动相当花钱,但从长远的角度看会为我们省钱。

But that's outrageous!
啊,这太可恶了!

It'll be the event of the year—everyone, but everyone, is coming.
这将是一年中的大事——每个人,对,就是每一个人,都会来。

I'm sorry,but could you repeat that,please?
对不起，请再说一遍好吗？

But now to the main question...
好，现在谈谈主要问题…

She can do anything but sing.
她除了唱歌之外,什么都会做。

It could do everything but stop.
除了停下来,什么事情都能做。

He wanted nothing but to stay here.
除了留在这里之外,他别无所求。

We had no choice but to move.
我们除了迁居别无选择。

They are but too glad to do so.
他们很高兴这样做。

Hardly a week passes but I get another good idea.
每过一个星期，我就会想到一个好主意。

They never meet but they discuss this problem.〔They never meet without discussing this problem.〕
他们每次见面都讨论这个问题。

Never a month passes but she writes to her old parents.
她没有一个月不给她年老的双亲写信。

He never comes but he may scold us.
他一来就责骂我们。

No one is so old but he may learn.〔=No one is so old that he may not learn.〕
活到老,学到老。

She is not so old but that she can read.
她并未老到不能读书。

He is not such a fool but that he knows it.
他并非笨得不知道这个。

There is no man so learned but what he can learn something from this book.
再博学的人都会从本书中学到一些东西。

I would fail my exams but that the classmates help me with my lesson.
要不是同学们帮助我学习功课,我考试就会不及格。

We would have avoided making such a mistake,but we didn't follow his sound advice.
我们本来可以不犯这样的错误，只是我们没有接受他的忠告。

He is extremely strong—not but that he will catch cold at times.
虽然他特别健壮,可是有时也会感冒。

The purpose of the scheme is not to help the employers but to provide work for young people.
这个计划的目的不是为了帮助雇主,而是为青年人提供工作机会。

It is not water,but alcohol.
这不是水，而是酒精。

They want not your pity but your help.
他们不需你的同情，而需要你的帮助。

Not that the machine is out of order, but that I have not learned to operate it.
不是机器出了故障,而是我还没学会操作。

Not that I don't pke the film,but that I have no time for it.
不是因为我不喜欢这部电影，而是因为我没时间去看。

There is no doubt (but) that he will win the election.
毫无疑问地,他将在竞选中获胜。

I have no doubt but that he'll come.
我想他会来的。

I may be only a servant,but I have my pride.
虽然我是个仆人，但我是有自尊心的。

We go to school every day but Sunday.
我们除了星期日每天都上学。

He has looked for it everywhere but in his own room.
除了他自己的房间外,他到处都找遍了。

The problem is anything but easy.
这个问题绝不容易。

He does everything in the house but putting the children to bed.
除了安排孩子上床睡觉之外,他在家里什么事都做。

Nobody but him could be so selfish.
除了他之外,谁也不会这样自私。

Nobody but John and Smith was in the lab yesterday.
除了约翰和史密斯之外，昨天实验室里没有其他人。

His house is the last but one in this street.
他的房子就是这条街上的倒数第二家。

but的基本意思相当于in spite of this或表示与所预料的不一样,意为“但是,然而,尽管如此”，不与though,although连用。

but可用来表达诸如愤怒、吃惊等强烈的感情，用来加强语气，也可用在表示歉意的句子里，常不译出，还可用于改变话题，意为“无论如何”“反正”“好”。

如果but接动词不定式,当前面有do或cannot时,不定式不带to; 当前面有anything, everything, nothing等词时,不定式常不带to,但也有例外; 其余情况带to。

与but连用的too...to do结构不具有否定意义。

如果主句含有hardly,never,never so,not so,not such等词，可用but,but that或but what引导表示结果的状语从句，构成双重否定，相当于that...not或unless，译作“没有…不”“若…，就一定”。

如果but that引出的分句描述的是真实情况，而主句描述的是非真实的情况，则主句多用虚拟语气，此时译作“假如没有…”“要不是”

not but that...是it is not but that的省略法, but无否定意义,译作“虽然…可是…”。

在not...but...结构里，可以不借助do(does)来否定动词，而否定其他成分，译作“不是…而是”。

not that...but that...相当于not because...but because...,译作“不是…而是…”。

否定词+doubt(或deny, question等)+but that中的but that相当于that, but无否定意义,常可省略。

在may...but...中，may常具有让步的含义。

but用作介词时表示“除…以外”,通常与表示确切意思的词，如no,all,any,every,each,none,nobody,anywhere等以及疑问词，如who,where,what等连用，但不能与some,many,several等表示不确切意思的词连用。所以，我们可以说all but one,但不能说some but one或many but one。也可与最高级形容词连用。其后面可以是名词、介词短语、形容词等。

but用作介词一般不置于句首。

but引导的短语后置于主语之后时，句中谓语应该和主语在人称和数上保持一致。

the last〔next〕 but one〔two, three, etc.〕的意思是“倒数第二、三、四…”,这种用法在英式英语中比较常见。

Our world is but a small part of the cosmos.我们的世界仅仅是宇宙的一小部分而已。

He's still but a child.他仅仅是个小孩子。

I want to say nothing but sorry.我只想说对不起。

He can but admit that it was his fault.他只得承认这是他的错误。

The watch was cheap, but it goes quite well.
这块表虽然便宜,但走得很好。

These changes will cost a lot, but they will save us money in the long run.
这些改动相当花钱,但从长远的角度看会为我们省钱。

But that's outrageous!
啊,这太可恶了!

It'll be the event of the year—everyone, but everyone, is coming.
这将是一年中的大事——每个人,对,就是每一个人,都会来。

I'm sorry,but could you repeat that,please?
对不起，请再说一遍好吗？

But now to the main question...
好，现在谈谈主要问题…

She can do anything but sing.
她除了唱歌之外,什么都会做。

It could do everything but stop.
除了停下来,什么事情都能做。

He wanted nothing but to stay here.
除了留在这里之外,他别无所求。

We had no choice but to move.
我们除了迁居别无选择。

They are but too glad to do so.
他们很高兴这样做。

Hardly a week passes but I get another good idea.
每过一个星期，我就会想到一个好主意。

They never meet but they discuss this problem.〔They never meet without discussing this problem.〕
他们每次见面都讨论这个问题。

Never a month passes but she writes to her old parents.
她没有一个月不给她年老的双亲写信。

He never comes but he may scold us.
他一来就责骂我们。

No one is so old but he may learn.〔=No one is so old that he may not learn.〕
活到老,学到老。

She is not so old but that she can read.
她并未老到不能读书。

He is not such a fool but that he knows it.
他并非笨得不知道这个。

There is no man so learned but what he can learn something from this book.
再博学的人都会从本书中学到一些东西。

I would fail my exams but that the classmates help me with my lesson.
要不是同学们帮助我学习功课,我考试就会不及格。

We would have avoided making such a mistake,but we didn't follow his sound advice.
我们本来可以不犯这样的错误，只是我们没有接受他的忠告。

He is extremely strong—not but that he will catch cold at times.
虽然他特别健壮,可是有时也会感冒。

The purpose of the scheme is not to help the employers but to provide work for young people.
这个计划的目的不是为了帮助雇主,而是为青年人提供工作机会。

It is not water,but alcohol.
这不是水，而是酒精。

They want not your pity but your help.
他们不需你的同情，而需要你的帮助。

Not that the machine is out of order, but that I have not learned to operate it.
不是机器出了故障,而是我还没学会操作。

Not that I don't pke the film,but that I have no time for it.
不是因为我不喜欢这部电影，而是因为我没时间去看。

There is no doubt (but) that he will win the election.
毫无疑问地,他将在竞选中获胜。

I have no doubt but that he'll come.
我想他会来的。

I may be only a servant,but I have my pride.
虽然我是个仆人，但我是有自尊心的。

We go to school every day but Sunday.
我们除了星期日每天都上学。

He has looked for it everywhere but in his own room.
除了他自己的房间外,他到处都找遍了。

The problem is anything but easy.
这个问题绝不容易。

He does everything in the house but putting the children to bed.
除了安排孩子上床睡觉之外,他在家里什么事都做。

Nobody but him could be so selfish.
除了他之外,谁也不会这样自私。

Nobody but John and Smith was in the lab yesterday.
除了约翰和史密斯之外，昨天实验室里没有其他人。

His house is the last but one in this street.
他的房子就是这条街上的倒数第二家。

conj.
• however
• nevertheless
• yet