or

conj.

1. （用以引出另一种可能性）或，或者，还是
   used to introduce another possibility
   1. Is your sister older or younger than you?
      你的姐妹比你大还是小？
   2. Are you coming or not?
      你来还是不来？
   3. Is it a boy or a girl?
      是个男孩还是女孩？
   4. It can be black, white or grey.
      它可能是黑的、白的或灰的。
2. （用于否定句，提出两种或多种事物时）也不
   used in negative sentences when mentioning two or more things
   1. He can't read or write.
      他不会读，不会写。
   2. There are people without homes, jobs or family.
      有人既无房屋，又无工作，又无家庭。
3. （用于警告或忠告）否则，不然
   used to warn or advise sb that sth bad could happen; otherwise
   1. Turn the heat down or it'll burn.
      把炉火开小一些，不然就烧焦了。
4. （用于两个数字之间表示约略数目）大约
   used between two numbers to show approximately how many
   1. There were six or seven of us there.
      我们约有六、七个人在场。
5. （用于引出解释性词语）或者说
   used to introduce a word or phrase that explains or means the same as another
   1. geology, or the science of the earth's crust
      地质学，或者说地壳的科学
   2. It weighs a kilo, or just over two pounds.
      这东西重一公斤，或者说两磅多一点儿。
6. （用于说明原因）不然，否则
   used to say why sth must be true
   1. He must like her, or he wouldn't keep calling her.
      他一定喜欢她，不然他不会老给她打电话。
7. （用于引出对比的概念）
   used to introduce a contrasting idea
   1. He was lying─or was he?
      他在说谎，还是没有说谎？

1. CONJ-COORD （连接两个或两个以上选择的可能性）或，或者，还是
   You use or to link two or more alternatives.
   1. 'Tea or coffee?' John asked...
      “喝茶还是喝咖啡？”约翰问道。
   2. Was she blonde or brunette?...
      她的头发是金色还是深褐色？
   3. Spread the inside of the loaf with olive paste or pesto sauce for extra flavour...
      在面包里面涂些橄榄酱或香蒜酱会更好吃。
   4. He said he would try to write or call as soon as he reached the Canary Islands...
      他说他一到加那利群岛就会设法写信或者打电话来。
   5. Students are asked to take another course in English, or science, or mathematics.
      要求学生在英语、自然科学和数学中再选一门课。
2. CONJ-COORD （与 either 或 whether 连用，给出另一个选择项）或，还是，就是
   You use or to give another alternative, when the first alternative is introduced by 'either' or 'whether'.
   1. Items like bread, milk and meat were either unavailable or could be obtained only on the black market...
      像面包、牛奶和肉之类的东西要么是买不到，要么就是只能去黑市买。
   2. Either you can talk to him, or I will...
      要么你跟他谈，要么我去。
   3. I don't know whether people will buy it or not...
      我不知道是否会有人买。
   4. I am not sure whether I was knocked over by the blast or whether I just fell...
      我拿不准自己是被爆炸的气浪掀翻的还是恰巧跌了一跤。
   5. The bathroom has taken a lot longer to get right than either Elaine or Dennis had envisaged.
      装修浴室花的时间远比伊莱恩和丹尼斯预想的要长。

You do not use or after neither. You use nor instead. He speaks neither English nor German.
neither 之后不用 or 而用 nor：He speaks neither English nor German（他既不会说英语也不会说德语）。

3. CONJ-COORD （用于两个数字之间表示概数）或，大约
   You use or between two numbers to indicate that you are giving an approximate amount.
   1. Everyone benefited from limiting their intake of tea to just three or four cups a day...
      每天只喝三四杯茶对身体有益。
   2. When I was nine or ten someone explained to me that when you are grown up you have to work...
      我大概9岁或10岁的时候，有人跟我说人长大了就得工作。
   3. Normally he asked questions, and had a humorous remark or two.
      通常都是他提问题，还不时地冒出一两句俏皮话。
4. CONJ-COORD （用于对刚说过的话进行更正或补充）或者说
   You use or to introduce a comment which corrects or modifies what you have just said.
   1. The man was a fool, he thought, or at least incompetent...
      他想道，那人是个傻瓜，或者说，至少很无能。
   2. There was nothing more he wanted, or so he thought...
      他再无所求，或者说他是这么想的。
   3. That was sporting of him. Or should I say cowardly...
      他风格真高。或者我是否应该说他很懦弱？
   4. She was aware of tension between them. Or had it been there from the beginning?
      她意识到他们的关系有些紧张。或者一开始就是如此吗？
5. CONJ-COORD （用于警告）否则，要不然
   If you say that someone should do something or something unpleasant will happen, you are warning them that if they do not do it, the unpleasant thing will happen.
   1. She had to have the operation, or she would die.
      她必须动手术，要不然就没命了。
6. CONJ-COORD （用于证明刚刚所作陈述的真实性）否则，要不然
   You use or to introduce something which is evidence for the truth of a statement you have just made.
   1. He must have thought Jane was worth it or he wouldn't have wasted time on her, I suppose.
      我想，他一定认为简值得他这么做，否则他不会在她身上浪费时间。
7. PHRASE （表示某事物对即将发生的事没有影响）不管是不是…
   You use or no or or not to emphasize that a particular thing makes no difference to what is going to happen.
   1. Chairman or no, if I want to stop the project, I can...
      不管我是不是主席，只要我想停止这个项目，我就能做到。
   2. The first difficulty is that, old-fashioned or not, it is very good.
      首要的难题是，过时也好，不过时也罢，它很不错。
8. PHRASE （用于重复的同一名词之间，表示某事物是否真实对情形没有影响）不管是否有…，无论有没有…
   You use or no between two occurrences of the same noun in order to say that whether something is true or not makes no difference to a situation.
   1. The next day, rain or no rain, it was business as usual...
      第二天是否下雨都没有差别，一切照常进行。
   2. Oil or no oil, Serbia has troubles.
      不管是否有石油，塞尔维亚的困难都会存在。
9. or else → see: else

1. A painter may exaggerate or distort shapes and forms
   画家可能会对线条和形状进行夸大或扭曲。
2. My family now accepts the fact that I don't eat sugar or bread
   我的家人现在都接受了我不吃糖和面包这件事。
3. Dad's flirting with all the ladies, or they're all flirting with him, as usual
   和平常一样，爸爸在和所有的女士调情，或者说所有的女士都在和他调情。
4. I think I have got to stop or I might turn into a machine
   我想我得停下来了，否则我就会变成一台机器。
5. I was meeting these chaps who were mostly more or less my own age.
   我见到了这帮小伙子，他们多数和我年龄相仿。
6. One or other of the two women was wrong.
   这两个女人当中有一个人错了。
7. Open up, or I break in!
   把门打开，不然我要砸门了！
8. 'Tea or coffee?' John asked
   “喝茶还是喝咖啡？”约翰问道。
9. Was she blonde or brunette?
   她的头发是金色还是深褐色？
10. Spread the inside of the loaf with olive paste or pesto sauce for extra flavour
    在面包里面涂些橄榄酱或香蒜酱会更好吃。
11. He said he would try to write or call as soon as he reached the Canary Islands
    他说他一到加那利群岛就会设法写信或者打电话来。
12. Items like bread, milk and meat were either unavailable or could be obtained only on the black market
    像面包、牛奶和肉之类的东西要么是买不到，要么就是只能去黑市买。
13. Either you can talk to him, or I will
    要么你跟他谈，要么我去。
14. I don't know whether people will buy it or not
    我不知道是否会有人买。
15. I am not sure whether I was knocked over by the blast or whether I just fell
    我拿不准自己是被爆炸的气浪掀翻的还是恰巧跌了一跤。
16. The bathroom has taken a lot longer to get right than either Elaine or Dennis had envisaged.
    装修浴室花的时间远比伊莱恩和丹尼斯预想的要长。
17. Everyone benefited from limiting their intake of tea to just three or four cups a day
    每天只喝三四杯茶对身体有益。
18. When I was nine or ten someone explained to me that when you are grown up you have to work
    我大概9岁或10岁的时候，有人跟我说人长大了就得工作。
19. Normally he asked questions, and had a humorous remark or two.
    通常都是他提问题，还不时地冒出一两句俏皮话。
20. The man was a fool, he thought, or at least incompetent
    他想道，那人是个傻瓜，或者说，至少很无能。
21. There was nothing more he wanted, or so he thought
    他再无所求，或者说他是这么想的。
22. That was sporting of him. Or should I say cowardly
    他风格真高。或者我是否应该说他很懦弱？
23. She was aware of tension between them. Or had it been there from the beginning?
    她意识到他们的关系有些紧张。或者一开始就是如此吗？
24. She had to have the operation, or she would die.
    她必须动手术，要不然就没命了。
25. He must have thought Jane was worth it or he wouldn't have wasted time on her, I suppose.
    我想，他一定认为简值得他这么做，否则他不会在她身上浪费时间。
26. Chairman or no, if I want to stop the project, I can
    不管我是不是主席，只要我想停止这个项目，我就能做到。
27. The first difficulty is that, old-fashioned or not, it is very good.
    首要的难题是，过时也好，不过时也罢，它很不错。
28. The next day, rain or no rain, it was business as usual
    第二天是否下雨都没有差别，一切照常进行。
29. I couldn't tell if he had been in a fight or had just fallen down
    我不知道他是和人家打架了，还是仅仅摔了一跤。

  otherwise or【导航词义：否则】

  otherwise conj. 否则，要不然

〔辨析〕用于表示否定条件，指如果不做某事，就会发生不好的事，含告诫、威胁之意，语气强于 or。

  or conj. 否则，要不然

〔辨析〕词义同 otherwise，但语气较弱，多用于口语，也可与 else 合用。

conj.

or so

• 大约
  about
  1. It'll cost €100 or so.
     这大约要花100欧元。

or somebody/something/somewhere

somebody/something/somewhere or other

• （表示对人、事、地点不太有把握）
  used when you are not exactly sure about a person, thing or place
  1. He's a factory supervisor or something.
     他是工厂监督一类的人吧。
  2. ‘Who said so?’ ‘Oh, somebody or other. I can't remember who it was.’
     “这是谁说的？”“啊，某一个人吧，我记不清是谁了。”

noun

1. a room in a hospital equipped for the performance of surgical operations
   1. great care is taken to keep the operating rooms aseptic

   Synonym:    operating roomoperating theateroperating theatresurgery

2. a state in northwestern United States on the Pacific

   Synonym:    OregonBeaver State