alternate
alternate 英 [ɔ:lˈtɜ:nət] 美 [ˈɔltərnət]
vi. 交替；轮流 adj. 交替的；轮流的 n. 交替
进行时:alternating 过去式:alternated 过去分词:alternated 第三人称单数:alternates 名词复数:alternates
- On a checkerboard, black squares alternate with white ones. As a verb, alternate means to do something in turns. As a noun, an alternate is a replacement.
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- vi. 交替；轮流
- adj. 交替的；轮流的
- n. 交替
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1. He felt alternately hot and cold.
他感到忽冷忽热。
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2. John has to work on alternate Sundays.
约翰每隔一周就有一个星期日得上班。
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3. alternating dark and pale stripes
深浅条纹相间
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4. Dark stripes alternate with pale ones.
深浅条纹相间。
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5. Her mood alternated between happiness and despair.
她的心情一会儿高兴一会儿绝望。
- alternate (adj.) "following each other by turns, reciprocal," 1510s, from Latin alternatus "one after the other," past participle of alternare "to do first one thing then the other; exchange parts," from alternus "one after the other, alternate, in turns, reciprocal," from alter "the other" (see alter).
- alternate (n.) 1718, "that which alternates (with anything else)," from alternate (adj.). Meaning "a substitute, one authorized to take the place of another," especially in political bodies, is first attested 1848.
- alternate (v.) 1590s, "do by turns" (transitive), from Latin alternatus, past participle of alternare "do one thing and then another, do by turns," from alternus "one after the other, alternate, in turns, reciprocal," from alter "the other" (see alter). Replaced Middle English alternen "to vary, alternate" (early 15c.). Transitive meaning "interchange reciprocally" is from 1850; intransitive sense "follow one another in time or place" is from c. 1700; that of "pass back and forth between actions, conditions, etc." is by 1823. Related: Alternated; alternating.
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