/bʌt, also bət; bʌt, bət/ adv
1 (esp dated or fml 尤作旧或作文雅语) only 只; 仅仅
*He's but a boy. 他不过是个孩子.
* If I had but known she was ill, I would have visited her. 我倘若知道她病了, 早就去探望她了.
* I don't think we'll succeed. Still, we can but try. 我想我们不会成功. 但是不妨试一试.
2 (idm 习语) one cannot/could not but... (fml 文) one can only...; one is obliged to... 不得不...; 只好...
*It was a rash thing to do, yet one cannot but admire her courage. 这事做得过于鲁莽, 然而不能不佩服她的勇气.
* I could not but admit that he was right and I was wrong. 我不得不承认他对了, 我错了.

/bət; bət; strong form 强读式 bʌt; bʌt/
conj (often used to introduce a word or phrase contrasting with or qualifying what has gone before 常用以引出与前文相对照或修饰前文的词语)
1 on the contrary 相反地; 而; 却
*You've bought the wrong shirt. It's not the red one I wanted but the blue one. 你买错了衬衫. 我要的不是红色的; 而是蓝色的.
* Tom went to the party, but his brother didn't. 汤姆去参加聚会了, 他的兄弟却没去.
* He doesn't like music but his wife does. 他不喜欢音乐, 可他的妻子却很喜欢.
2 (a) yet; however; in spite of this 但; 然而; 尽管如此
*She cut her knee badly, but didn't cry. 她弄伤了膝盖, 但是并没有哭.
* I'd love to go to the theatre tonight, but I'm too busy. 我倒是很想今晚去看戏的, 只是我太忙了.
* This restaurant serves cheap but excellent food. 这家餐馆价廉物美.
* He's hard-working, but not very clever. 他很努力, 却不大聪明.
(b) yet also; at the same time 但也; 但又; 同时也; 同时又
*He was tired but happy after the long walk. 他走了一段很长的路之後, 虽然很累但也很愉快.
3 (dated or fml 旧或文) (usu after a negative 通常用于否定词语之後) without the result that...; without it also being the case that... 而不产生...的结果; 而不同时也...
*I never pass my old house but I think of the happy years I spent there. 每当我路过我的故居时, 都会追忆起我在那儿度过的快乐岁月.
* No man is so cruel but he may feel some pity. 没有人会残忍到连一点同情心都没有.
4 (showing disagreement, surprise or astonishment 表示异议、惊奇或吃惊)
*`I'll give you ten pounds to repair the damage.' `But that's not nearly enough!' ｀我给你十英镑赔偿你的损失吧.＇ ｀那可远远不够哇!＇
* `I'm getting married.' `But that's wonderful!' ｀我快要结婚了.＇ ｀啊, 那太好了!＇
5 (used to emphasize a word 用以加强某词的语气)
*Nothing, but nothing will make me change my mind. 没有任何事情, 绝对没有任何事情可以使我改变主意.
6 (idm 习语) ,but me no `buts don't argue with me or make excuses 不要跟我争辩或推托. ,but that... (dated or fml 旧或文)
(a) were it not for the fact that... 要不是...; 若非...
*But that you had seen me in the water, I wou

/bət; bət; strong form 强读式 bʌt; bʌt/
prep
1 (used after the negatives nobody, none, nowhere, etc, the question words who, where, etc, and also all, everyone, anyone, etc 用于否定词nobody、none、nowhere等和疑问词who、where等之後, 以及 all、everyone、anyone等之後) except (sb/sth); apart from; other than 除（某人[某事物]）以外; 此外; 不同于
*The problem is anything but easy. 这个问题可绝对不容易.
* Everyone was there but him. 除了他之外, 所有的人都在.
* Nobody but you could be so selfish. 除了你之外, 谁也不会这样自私.
* Nothing but trouble will come of this plan. 这个计划只能带来麻烦.
2 (idm 习语) but for sb/sth/ 5bQt fE; `bQt fL/ except for sb/sth; without sb/sth 要不是因为某人[某事物]; 如果没有某人[某事物]
*But for the rain we would have had a nice holiday. 要不是因为下雨, 我们的假日一定过得很惬意.
* But for the safety-belt I wouldn't be alive today. 假若没有安全带, 我就活不到今天了.

/bʌt, also bət; bʌt, bət/
rel pron 关系代词 (dated or fml 旧或文) (after a negative 用于否定词语之後) who/that do/does not 无人[事物]不
*There is no man but feels (ie no man who does not feel) pity for starving children. 没有人不同情那些嗷嗷待哺的孩子.
* There is not one of us but wishes (ie not one of us that does not wish) to help you. 我们没有一个人不想帮助你.