or

or¹
conjunction

used to link alternatives
[用于连接可能的选择]或，或者；还是，就是
a cup of tea or coffee.
一杯茶或咖啡。
are you coming or not?.
你来还是不来？。
she couldn't read or write.
她读或写都不会。
I either take taxis or walk everywhere.
不管到哪儿我不是坐出租车就是步行。
it doesn't matter whether the theory is right or wrong.
该理论是正确还是错误并没有关系。
introducing a synonym or explanation of a preceding word or phrase
即，或者说
the espionage novel, or, as it is known in the trade, the thriller.
间谍小说，或者说，业内人士所谓的惊险小说。
otherwise (used to introduce the consequences of something not being done or not being the case)
否则；不然
hurry up, or you'll miss it all.
快点，不然你什么都赶不上了。
introducing an afterthought, usually in the form of a question
[常用于疑问句，表示事后的想法]会不会，要不
John's indifference—or was it?—left her unsettled.
约翰的冷漠——果真如此吗？——她心神不宁。
(poetic/literary)either
(诗/文)还是
to love is the one way to know or God or man.
是上帝还是常人，爱是唯一的试金石。

noun

(常作 OR)(Electronics)a Boolean operator which gives the value one if at least one operand (or input) has a value of one, and otherwise has a value of zero
(电子)（逻辑电路的）或
■(亦作 OR gate)a circuit which gives an output signal if there is a signal on any of its inputs
“或”门，“或”门电路

常用词组
or else

or so

语源

Middle English: a reduced form of the obsolete conjunction other (which superseded Old English oththe 'or'), of uncertain ultimate origin

用法

1 Where a verb follows a list separated by or, the traditional rule is that the verb should be singular, as long as the things in the list are individually singular, as in a sandwich or other snack is included in the pricerather than a sandwich or other snack are included in the priceThe argument is that each of the elements agrees separately with the verb. The opposite rule applies when the elements are joined by and: here, the verb should be plurala sandwich and a cup of coffee are included in the priceThese traditional rules are observed in good English writing style but are often disregarded in speech.
2 On the use of either … or, see usage at either

or²
noun

[mass noun]gold or yellow, as a heraldic tincture
(纹章)金色，黄色
[postpositive]azure a bend or.
青色底上有一条金色带。

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