大多数人在火灾发生之前已经离开。
尽管新税制已经实行，但你在11月之前仍可以提起上诉。
Although the new tax is already in force, you have until November to lodge an appeal.
许多船员在起床号响起之前就已经醒了。
在9:30之前我们已经起航并且向下游行驶。
之前他已经看过这些书很多遍了。
然而，仔细一想，你也很容易觉得你之前已经看过了。
Upon reflection, however, it is equally easy to feel like you have seen it all before.
我的洗衣机已经用了15年多了，昨晚之前它还能正常工作。
My washing machine is more than fifteen years old and it has worked just fine until last night.
然而，如果员工在评估期之前就已经意识到自己的不足，他们可能无法或不愿纠正这些不足。
If the employees were already aware of their deficiencies before the evaluation period, however, they may be unable or unwilling to correct them.
莫尔斯是海象出现之前的另一个名字，且似乎已经传播到其他语言，唯独在英语中却不再使用。
Morse was yet another name that appeared before walrus and seems to have spread to other languages only to drop out of use in English.
在他为这个场景增添一些变化之前，他已经仔细考虑了好长一段。
He had contemplated a good part of the performance before he contributed his bit of variety to it.
甚至在学期开始之前，他所有的课都已经满了，因为许多渴望学习的学生已经预定了。
All of his classes were all full even before the semester began because many students who were eager to learn already booked in.
暴风雨到来之前小麦已经收完了。
就像我之前说到的，铀铅年代测定法已经存在一段时间了。
Like I said before, Uranium-Lead Dating has been with us for a while.
我们在调低暖气之前就已经分心了。
在电影诞生之前，他们就已经出现很久了。
但甚至早在那之前，人们就已经在试验改良传统原声吉他的方法了。
But long before that even, people were experimenting with ways to modify traditional acoustic guitars.
研究人员发现毒液甚至在蛇出现之前就已经进化出来了，大约在一亿年前。
The researchers found that venom evolved before snakes even existed, about a hundred million years before.
音乐学家因此推测，在被西方音乐家采用之前，全音阶已经发展和使用了数千年。
Musicologists therefore hypothesize that the diatonic musical scale was developed and used thousands of years before it was adopted by Western musicians.
在那之前，他们已经付出了他们所拥有的一切，而此刻他们知道一切都结束了。
Until then they've been giving everything they have and at that moment they know it's over.
在第一批载人火箭开始飞行之前，西拉诺已经死了，且已被掩埋了整整三个世纪。
Cyrano was dead and buried for a good three centuries before the first manned rockets started to fly.
在丈夫去世之前她就已经在一所现代的别墅里安顿了下来。
Before her husband's death she had installed herself in a modern villa.
在行动开始之前，他们空军部队的战斗力就已经被瓦解了。
在加拉赫能接住球之前，纳德洛夫就已经比他先接到了。
Before Gallacher could catch up with the ball, Nadlovu had beaten him to it.
飓风袭来之前，沿海地带的人已经撤离。
People were evacuated from the coastal regions in advance of the hurricane.
我们已经决定雇用一些培训人员，在敲定他们的合同之前，我想先核实一下细节。
We've decided to take on some training staff, and I'd like to check details before I finalise their contracts.
他坚持认为，在欧洲人到来之前，拉帕努伊人已经陷入内战和自相残杀。
Before Europeans arrived, the Rapanui had descended into civil war and cannibalism, he maintains.
在这个原理被发现之前，工程师们已经制造了利用这个原理的仪器，例如测量船下的海洋深度。
Before this was discovered, engineers had already built instruments to exploit the principle, for example to measure the depth of the sea under a ship.
我已经存了一些钱以备不时之需，但在我们走之前，我可能还要再多挣点。
I've got a little put aside for a rainy day, but I might need to earn a little more before we go.
我已经存了一些钱以备不时之需，但在我们走之前，我可能需要多挣点钱。
I've got a little put-aside for a rainy day, but I might need to earn a little more before we go.
有些作家在回头阅读之前已经创作了一部完整的作品，而另一些人在继续写作之前可能会把其中的一个段落重写很多次。
Some writers create an entire work before going back to read what they have written, while others may rewrite a single paragraph many times before moving on.
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