or是什么意思

or是什么意思

conj.（连接词）Used to indicate an alternative, usually only before the last term of a series:或：用以表示一种选择，常用在一系列可选事物中最后一个的前面：hot or cold; this, that, or the other.热或冷；这个、那个或其它Used to indicate the second of two alternatives, the first being preceded by either or whether : 不是…就是，非…即：用在二个可选事物中的第二个前面，第一个前面有either 或者 whether ： Your answer is either ingenious or wrong. She didn't know whether to laugh or cry.你的回答不是独树一帜就是错了。她不知道是该哭还是该笑Archaic Used to indicate the first of two alternatives, with the force of either or whether. 【古语】 两者之一：用于指出两个可选事物的第一个的前面，连用的有either 或者 whether. Used to indicate a synonymous or equivalent expression:用来表示一个同义词或等同的表示：acrophobia, or fear of great heights.恐高症或对高处的恐惧Used to indicate uncertainty or indefiniteness:用来表示不太确定或不太确切：two or three.二或三Middle English 中古英语 from other [or] from Old English other from oththe 源自 other [或者] 源自 古英语 other 源自 oththe and from outher from Old English ³³ther} * see either 并源自 outher 源自 古英语 ³³ther} *参见 eitherWhen all the elements in a series connected by or are singular, the verb they govern is singular: 当一系列事物中由or 来连接的各项均为单数时， 其后动词也用单数形成：Tom or Jack is coming. 汤姆或杰克要来。Beer, ale, or wine is included in the charge. 啤酒或葡萄酒均已包括在帐单上。 When all the elements are plural, the verb is plural. When the elements do not agree in number, some grammarians have suggested that the verb be governed by the element to which it is nearer: 当所有各项均为复数形式时，动词亦采用复数形式。当事物数量不统一时，有些语法学家主张动词形式由离它最近项（的单复数形式）决定：Tom or his sisters are coming. 汤姆或其姐妹要来。The girls or their brother is coming. 女孩子们或其兄弟要来。Cold symptoms or headache is the usual first sign. 感冒症状或发烧头痛通常是第一信号。 Other grammarians, however, have argued that such constructions must be avoided and that substitutes be found in which the problem of agreement does not arise: 但是，另有些语法学家却主张避免使用这种结构而使用不发生主谓不一致问题的替代结构：Either Tom is coming or his sisters are. 不是汤姆就是她的姐妹们要来。The usual first sign may be either cold symptoms or a headache. See Usage Note at and/or, either, neither, nor 1通常第一信号不是感冒症状便是发烧头痛 参见 and/or， either， neither， nor1