either
[ˈiðɚ, ˈaɪðɚ]
pron.
（两者之中）任何一个;
adj.
（两者中）任一的;
非此即彼的，两者择一的;
adv.
（否定句中）也;
[用于否定句或否定词组后]也（不…），亦，而且;
[口语] [用于否定句或否定词组后以加强语气]根本;
当然;
conj.
[通常用于“either…or…”结构中]或者，要么[在“either…or…”结构中，动词的人称和数一般与离得最近的主动响应，但有时用第三人称单数，在口语中也有把两个主语合在一起用作复数的];
例句:
-
The band members are no hopeful apprentices, either.
来自BBC
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The album's title probably doesn't help either.
来自BBC
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She had met both sons and did not care for either.
两个儿子她都见了，一个都不喜欢。
-
The drama on the field did not disappoint either.
来自BBC
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He seems either to fear women or to sentimentalize them.
他似乎要么怕女人要么就对她们怀有浪漫想法。
-
On either side of the tracks the ground fell away sharply.
跑道两侧都是很陡的斜坡。
-
I don't think either of them are at home.
我想他们中任何一个都不在家。
来自《权威词典》
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Either of the plans is equally dangerous.
这两个计划中,哪一个都同样有危险。
来自《权威词典》
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I have bought two books, you can have either.
我买了两本书,你要哪一本都可以。
来自《权威词典》