一旦的英文:
in case (something happens)
once (something becomes true, then...)
in one day

参考例句:
  • Once a beggar, always a beggar.
    一旦成为乞儿,就永无止境。
  • It is impossible to rehydrate a mucus globule once it has become dehydrated
    一旦已经脱水,粘液不可能再水化。
  • Once the program is coded, the programmer must debug it.
    程序一旦编成,程序员就必须调度它。
  • Pesticide persistence beyond the critical period for control leads to residue problems
    农药一旦超过控制的临界期,就会导致残留问题。
  • Once we disabuse ourselves of the prejudice,we can cooperate with each other quite well.
    一旦我们消除了这种偏见,就能很好地合作。
  • It is worth remembering that previous wills are nullified automatically upon marriage.
    要记住的是,一旦结婚,原遗嘱自动失效。
  • If the truth is once elicited, they shall go scot-free.
    一旦真相大白,他们也就脱清干系了。
  • Chicken Wrangler Zombie will release a flock of Zombie Chickens when damaged.
    养鸡僵尸一旦被攻击就会放出一群僵尸鸡。
  • Once a satisfactory system of lubrication has been secured the hardness of the interacting elements becomes critical.
    一旦获得了满意的润滑系统,相互作用的元件的硬度就成为紧要之事。
  • In other words, once we pass a certain critical point, the computers take over and there is complexity explosion.
    换句话说,一旦我们过了某个临界点,电脑就会取得主宰性地位,出现一个“复杂性爆炸”。
something是什么意思
pron. 某物;某事
n. 重要的人(或事物);大致

  • It is not something ephemeral.
    它不是朝生暮死的东西。
  • Know something of everything and everything of something
    既要有一般常识,又要有专业知识
  • Know something of everything and everything of something.
    通百艺而专一长。
happens是什么意思
v. 偶然遇到;发生;出现;碰巧

  • These things will happen.
    这种事总要发生的。
  • It happened far back in the past.
    这事发生在久远的过去。
  • A string of accidents happened at that corner.
    在那个转角发生了一连串的事故。
once是什么意思
adv. 一次,一回;一度;曾经
conj. 一旦;一…就…
n. 一次;一回

  • Once is no custom
    一次不成例
  • Do it for this once.
    就干这一次吧。
  • Gordon is at once modest and clever.(at once …and…既..又)
    戈登既聪明又谦逊

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