But before this real cause and effect, the human's power is so little.
但在此之前的真正原因和影响，人类的力量是如此之少。
You've done some stupid things before, but this really takes the biscuit!
你以前的确也干过些蠢事，但这一次实在吓人！
Scientists had seen this wolf-like creature before, but this skull was different.
科学家们以前见过这种类似狼的生物，但这种个头骨（与之前的）有所不同。
But most importantly, before any of these, what will this newborn country be called?
但在这些问题之前最重要的是这个新生的国家将被称作什么？
But this time my dear niece, before your make the decision please think over what I said.
但是这一次我亲爱的侄女，在你做决定以前请你仔细考虑我所说的。
But before you head to the medicine cabinet, consider this.
但是，在你前往药柜之前，考虑这一点。
We won a few titles before, but this is the most important.
我们之前很少获得冠军，但这是最重要的一次。
I'm sure most of you have heard this before but I want you to listen closely.
我相信你们中的大多数之前都听过这首歌，但我还是希望你们能仔细的听听。
But there are signs this may be the darkest hour just before the dawn.
但有预兆表示这也许只是黎明前最黑暗的时刻。
"I had seen fossils before, but nothing like this," he says.
他说：“我见过化石，但从来没有见过这样的化石。”
But now we find that this brain region can actually learn to recognize when you might make a mistake, even before a difficult decision has to be made.
但是现在我们发现，事实上，当人们有可能犯错的时候，甚至是在人们作艰难的决定之前，大脑的这一区域就在学着认知这些因素。
This may not be necessary, but we always like doing a full build before deploying.
这可能没有必要，但我们总是喜欢在部署前进行整体构建。
But then you think we've coped before when this sort of thing has happened.
但是你要知道，在这之前我们已经应对过很多类似的情况。
But this much has been said before, and will no doubt be said again.
但是以前这些结论已经重复多少次了，毫无疑问还将继续重复下去。
They've never done this before, but they are surprisingly good at it.
虽然它们以前从未这样做过，但令人吃惊的是，它们很擅长这样做。
But that timeline was drawn up before the tragic incident this weekend over Wardak.
但是时间表在本周末此次悲剧事件前就停滞了。
I hate to beat a dead horse, but it is very important that you understand this before you leave.
我不想多此一举，但你离开以前必须了解这个。
But this letter was different from those he sent to me before.
可这封来信与以往叔叔寄来的信不同。
I had known heartache before, but this transcended every previous emotion I had ever experienced.
我以前曾经有过心痛，但是这次超越了我以前经历的所有情感。
But this will allow you to correct problems before they cost you money or credibility.
但是这样做可以在损失您的金钱和信誉之前纠正问题。
You start feeling not really good, but you've done this before. At least once.
你就会感觉不太好，但是你以前不止一次地做过相同的事。
Again, as we've said before, this whole episode was just weird — but funny.
如此就又回到前面说过的，这一集怪怪的，不过都挺搞笑的。
This could well be boilerplate. But spies may think twice now before passing on information.
虽然这可能是样板文件，但特务们以后互通情报的时候可得三思而行了。
But this great basketball rivalry began long before then.
但两者之间激烈的篮球对抗其实很早就开始了。
You may have been exposed to this idea before, but this time try to hear.
你可能听说过这个观点，但不妨再听一次。
But before we get there, let me give you a little bit of history as to why this is such an important reaction.
但在这之前，让我先介绍一下历史说明为什么，这个反应如此重要。
Well, we can do this but we have to wait a bit before we can create another explosion.
那么，我们可以做到这一点，但我们稍等一会才能创建另一个爆炸。
Well, we can do this but we have to wait a bit before we can create another explosion.
那么，我们可以做到这一点，但我们稍等一会才能创建另一个爆炸。
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