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

參考例句：
  • Once a beggar, always a beggar.
    一旦成為乞兒，就永無止境。
  • It is impossible to rehydrate a mucus globule once it has become dehydrated
    一旦已經(jīng)脫水，粘液不可能再水化。
  • Once the program is coded, the programmer must debug it.
    程序一旦編成，程序員就必須調(diào)度它。
  • Pesticide persistence beyond the critical period for control leads to residue problems
    農(nóng)藥一旦超過控制的臨界期，就會導致殘留問題。
  • Once we disabuse ourselves of the prejudice,we can cooperate with each other quite well.
    一旦我們消除了這種偏見，就能很好地合作。
  • It is worth remembering that previous wills are nullified automatically upon marriage.
    要記住的是，一旦結婚，原遺囑自動失效。
  • If the truth is once elicited, they shall go scot-free.
    一旦真相大白，他們也就脫清干系了。
  • Chicken Wrangler Zombie will release a flock of Zombie Chickens when damaged.
    養(yǎng)雞僵尸一旦被攻擊就會放出一群僵尸雞。
  • Once a satisfactory system of lubrication has been secured the hardness of the interacting elements becomes critical.
    一旦獲得了滿意的潤滑系統(tǒng)，相互作用的元件的硬度就成為緊要之事。
  • In other words, once we pass a certain critical point, the computers take over and there is complexity explosion.
    換句話說，一旦我們過了某個臨界點，電腦就會取得主宰性地位,出現(xiàn)一個“復雜性爆炸”。
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.
    它不是朝生暮死的東西。
  • Know something of everything and everything of something
    既要有一般常識,又要有專業(yè)知識
  • Know something of everything and everything of something.
    通百藝而專一長。
happens是什么意思：
v. 偶然遇到；發(fā)生；出現(xiàn)；碰巧
  • These things will happen.
    這種事總要發(fā)生的。
  • It happened far back in the past.
    這事發(fā)生在久遠的過去。
  • A string of accidents happened at that corner.
    在那個轉(zhuǎn)角發(fā)生了一連串的事故。
once是什么意思：
adv. 一次，一回；一度；曾經(jīng)
conj. 一旦；一…就…
n. 一次；一回
  • Once is no custom
    一次不成例
  • Do it for this once.
    就干這一次吧。
  • Gordon is at once modest and clever.(at once …and…既..又)
    戈登既聰明又謙遜

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