候补的英文：
a canidate for a vacancy
an alternate

参考例句：
  • If you’re so down on mothers-in-law, it’s queer you’re anxious to be one yourself. The expectant mother-in-law!
    你既然这么瞧不起婆婆，你自己又急于要做婆婆，这就怪了。你还是一位候补婆婆呢！
  • reserve block [sale of public housing unit]
    候补大厦〔出售公屋〕
  • "I can put you on stand - by, if you like. "
    如果您愿意，我可以把您列为候补。
  • I could put you on standby if you wish.
    我可以把您列为候补，如果您愿意的话。
  • I'm sorry, it's fully booked. Would you like me to put you on the waiting list?
    抱歉!全部订完了。给你排在候补名单上好吗?
  • When the star became sick,his understudy stepped into his part.
    当这位电影明星生病时，由他的候补演员担任他的角色。
  • Understudy(the role of)Ophelia
    排练奥菲利亚(一角)当候补演员
  • Jerry became a bench warmer last winter.
    去年冬天杰里变成了候补球员
  • Replacement ammunition must pass the requirements of the declared Division as tested by the match chronograph.
    候补弹药必须经由官方测速器测试并通过其申请报名组别的规定.
  • In most jurisdictions, twelve jurors and two alternates are chosen.
    大多数辖区都会选出12名陪审员和2名候补陪审员。
vacancy是什么意思：
n. 空缺，空位，空白；空虚
  • There are a few vacancies on the second floor.
    在二楼有几个空房间。
  • We have a vacancy for a computer programmer.
    我们有一个电脑编程师空缺。
  • The traveller searched in vain for a vacancy at motels.
    旅行者无法在汽车旅馆找到空房间。
alternate是什么意思：
adj. 轮流的，交替的，间隔的
n. 候补者；替换物
v. （使）交替，轮流
  • Are there alternatives to prison?
    除了监禁还有其他办法吗？
  • should alternately present as undulate .
    激情平淡应呈波浪形交替出现。
  • There are two reasonable alternatives.
    有两个合理的替代方案。

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