/ɔ:(r) ||; ɔr/conj 1 used in a list of possibilities or choices （用于一连串的可能性或选择）或，或者，还是: Would you like to sit here or next to the window? 你想坐在这里还是窗旁？Are you interested or not? 你有兴趣没有？For the main course, you can have lamb, beef or fish. 至于主菜，你可选择羊肉、牛肉或鱼。 ☞ Look at either...or. 参看either...or。
2 if not; otherwise 否则；不然: Don't drive so fast or you'll have an accident! 开车不要开得那么快，否则会发生意外！ [SYN] Or else and otherwise can be used with this meaning. or else及otherwise也可用于此义。
3 (after a negative 用于否定式后) and neither; and not 也不；也没有: She hasn't phoned or written to me for weeks. 她已经好几个星期没有打电话或写信给我。I've never been either to Italy or Spain. 我从没去过意大利，也没去过西班牙。 ☞ Look at neither...nor. 参看neither...nor。
4 used between two numbers to show approximately how many （用于两个数字之间，表示大约多少）: I've been there five or six times. 那个地方我去过五六次。
5 used before a word or phrase that explains or comments on what has been said before （用于作说明的词或词组前）亦即，也就是: 20% of the population, or one in five 人口的20%，即每五个人之中有一个
or else→
ELSE about 大约；左右:
You should feel better in three days or so. 大约三天之后，你应当会感觉好些。 or something/somewhere(
spoken 口语) used for showing that you are not sure, cannot remember or do not know which thing or place （表示不肯定、不记得或不知道是哪个事物或地方）:
She's a computer programmer or something. 她是计算机编程员这类的人。 ☞ Another phrase that shows that you are not sure is ...or other He muttered something or other about having no time and disappeared. 另一个表示不肯定的词组是...or other：He muttered something or other about having no time and disappeared.他咕哝着说没有时间什么的，接着就消失了。