单词	alternation
释义	alternateal‧ter‧nate2 /ˈɔːltəneɪt $ ˈɒːltər-, ˈæl-/ ●○○ AWL verb [intransitive, transitive] Verb Table VERB TABLE alternate Simple Form Present I, you, we, they alternate he, she, it alternates Past I, you, he, she, it, we, they alternated Present perfect I, you, we, they have alternated he, she, it has alternated Past perfect I, you, he, she, it, we, they had alternated Future I, you, he, she, it, we, they will alternate Future perfect I, you, he, she, it, we, they will have alternated Continuous Form Present I am alternating he, she, it is alternating you, we, they are alternating Past I, he, she, it was alternating you, we, they were alternating Present perfect I, you, we, they have been alternating he, she, it has been alternating Past perfect I, you, he, she, it, we, they had been alternating Future I, you, he, she, it, we, they will be alternating Future perfect I, you, he, she, it, we, they will have been alternating Examples EXAMPLES FROM OTHER DICTIONARIES He has periods of depression, which alternate with frenzied activity. His mother would alternate inexplicably between kindness and cruelty. Leroy alternated aerobic exercises with weight training to improve his stamina. The class has two teachers who alternate on a weekly basis. The guide explained the situation, alternating between Spanish and German. You'll have to alternate. One of you can use the room in the mornings, and the other in the evenings. EXAMPLES FROM THE CORPUS All day Saturday, tensions ran high as the president alternated intense cabinet meetings with bouts of seclusion. Herwig and saxist Henderson played as a harmonizing duo, then split to alternate solos. I alternate the direction of these strokes, imitating the direction I use to apply the pastel in the first place. Over the past weeks, Milosevic has alternated between repression and reconciliation, and this week was no exception. We could simply alternate between the two algorithms and catch the suspect either way. When putting the ring together I alternate the segments marked face up then plain face up to create a balanced pattern. Thesaurus Longman Language Activatorto keep changing from one thing to another► alternate to change repeatedly from one thing or condition to a different one and back again: alternate between something and something: · His mother would alternate inexplicably between kindness and cruelty.· The guide explained the situation, alternating between Spanish and German.alternate with: · He has periods of depression, which alternate with frenzied activity.alternate something with something: · Leroy alternated aerobic exercises with weight training to improve his stamina. ► vary to regularly change what you do or the way you do it so that you are more effective or do not become bored: · Teachers can keep students' interest by varying their classes.· One of Dickens' great skills as a writer is the way he varies his style.· If you're bored with the trip to work, try varying your route. ► rotate if people rotate , they each do something such as a piece of work once, then another person does it, then another, and then the first person again: · We rotate -- I teach French grammar one week, and she teaches it the next.rotate a job/task etc: · We usually rotate the worst jobs so that no one gets stuck with them. ► chop and change British informal to keep changing from one thing to another, in a way that annoys people: · Don't chop and change from one style to another. It confuses the reader.· I wish they wouldn't keep chopping and changing. There's a different team on the field every week. to do something with another person► share if two people share a job or activity, they each do a part of it: · Judy and I shared the driving, so it wasn't too tiring.share something with somebody: · She shares the job with another woman who also has a young child. ► take it in turns/take turns if two or more people take it in turns or take turns to do something, they do it one after the other, and each person does it several times: · If the housework is too much for one person, why don't you take it in turns?take it in turns/take turns to do something: · Everyone took turns to patrol the streets at night.take it in turns/take turns (at/in) doing something: · We took turns sitting in the front seat.· Reading need not be a solitary activity. Students can take turns in reading aloud. ► alternate if two people alternate , one person does something one time and the other person does it the next time, changing regularly: · You'll have to alternate. One of you can use the room in the mornings, and the other in the evenings.· The class has two teachers who alternate on a weekly basis. if two things alternate, or if you alternate them, they happen one after the other in a repeated patternalternate between She alternated between outrage and sympathy.alternate with Periods of depression alternate with excited behavior.alternate something and/with something Twist your body, alternating right and left stretches.—alternation /ˌɔːltəˈneɪʃən $ ˌɒːltər-, ˌæl-/ noun [countable, uncountable]
随便看	social scientist social security Social Security Number social service social sharing social studies social work social worker societal society Society of Friends Society of Jesus socio- socioeconomic socioeconomically sociological sociologically sociologist sociology sociopath sociopathic sock socket sock puppet Socrates

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