al·ter·nate
adjective/ɔːlˈtɜːnət/
/ˈɔːltərnət/
[usually before noun]- (of two things) 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.
双臂交替伸展 30 次作为热身运动。
- alternate layers of fruit and cream
- 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.
渡轮服务最初将隔日运行，最终增加到每日航行。
- John has to work on alternate Sundays.
- (especially North American English) (also alternative British and North American English)that can be used instead of something else
可供替代的
Word Originearly 16th cent.: from Latin alternat- ‘done by turns’, from alternare, from alternus ‘every other’, from alter ‘other’.