alternate

adjective

/ɔːlˈtɜːnət/

/ˈɔːltərnət/

[usually before noun]

(of two things两事物) happening or following one after the other regularly交替的；轮流的
- alternate layers of fruit and cream水果层和奶油层相间
- Stretch up 30 times with alternate arms as a warm-up exercise.交替双臂向上伸展30次，作为热身运动。
if something happens on alternate days, nights, etc. it happens on one day, etc. but not on the next间隔的；每隔（…天等）的
- John has to work on alternate Sundays.约翰每隔一周就有一个星期日得上班。
- The ferry service will initially run on alternate days, increasing eventually to daily sailings.轮渡服务最初将隔天运行，最终增加到每天一班。
Topics Timec1
(especially North American English)
(also alternative British and North American English)
that can be used instead of something else可以用来代替其他东西

词源early 16th cent.: from Latin alternat- ‘done by turns’, from alternare, from alternus ‘every other’, from alter ‘other’.

verb

/ˈɔːltəneɪt/

/ˈɔːltərneɪt/

动词形式

present simple I / you / we / they alternate	/ˈɔːltəneɪt/ /ˈɔːltərneɪt/
he / she / it alternates	/ˈɔːltəneɪts/ /ˈɔːltərneɪts/
past simple alternated	/ˈɔːltəneɪtɪd/ /ˈɔːltərneɪtɪd/
past participle alternated	/ˈɔːltəneɪtɪd/ /ˈɔːltərneɪtɪd/
-ing form alternating	/ˈɔːltəneɪtɪŋ/ /ˈɔːltərneɪtɪŋ/

[transitive] to make things or people follow one after the other in a repeated pattern使交替；使轮流
- alternate A and B Alternate cubes of meat and slices of red pepper.交替放置肉丁和红辣椒片。
- alternate A with B Alternate cubes of meat with slices of red pepper.交替放置肉丁和红辣椒片。
- Her music alternates moments of sudden quiet with moments of dramatic intensity.她的音乐时而突然安静，时而充满戏剧性。
[intransitive] (of things or people事物或人) to follow one after the other in a repeated pattern交替；轮流
- alternating dark and pale stripes深浅条纹相间
- alternate with something Dark stripes alternate with pale ones.深浅条纹相间。
[intransitive] alternate between A and B to keep changing from one thing to another and back again交替
- Her mood alternated between happiness and despair.她的心情一会儿高兴一会儿绝望。
- They believed that the earth’s climate alternated between periods of extreme cold and warm.他们认为地球的气候在极度寒冷和温暖的时期交替变化。

词源early 16th cent.: from Latin alternat- ‘done by turns’, from alternare, from alternus ‘every other’, from alter ‘other’.

noun

/ˈɔːltɜːnət/

/ˈɔːltərnət/

(North American English)

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