Alternate

(a)

1. (of two things) happening or following one after the other regularly 交替的；轮流的

e.g. alternate layers of fruit and cream

水果层和奶油层相间

2. if sth happens on laternate days, nights, etc. it happens on one day, etc. but not on the next 间隔的；每隔（...天的）的

e.g. John has to work on alternate Sundays.

约翰每隔一周就有一个星期日得上班。

3. （especially NAmE)=Alternative

(v)

1. alternate A and B/alternate A with B: to make things or people follow one after the other in a repeated pattern 使交替；使轮流

e.g. Alternate cubes of meat and slices of red pepper.

交替放置肉丁和红辣椒片。

e.g. Alternate cubes of meat with slices of red pepper.

交替放置肉丁和红辣椒片。

2. alternate (with sb) (of things or people) to follow one after the other in a repeated pattern 交替；轮流

e.g. alternating dark and pale stripes

深浅条纹相间

e.g. Dark stripes alternate with pale ones.

深浅条纹相间。

3. alternate between A and B: to keep changing from one thing to another and back again 交替

e.g. Her mood alternated between happiness and despair.

她一会儿高兴一会儿绝望。

(n)

(NAmE) a person who does a job for sb who is away 代替者；代理人；候补者

引申

Alternately

(a)

e.g. He felt alternately hot and cold.

他感到忽冷忽热。

引申

Alternation

(n)

the alternation of day and night

日夜交替

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