在内战之前,学校采用了两个日程表中的一个,而那两个日程表上都没有暑假。
Before the Civil War, schools operated on one of two calendars, neither of which included a summer vacation.
这就带来了一个风险,即在这个应用软件投入使用之前,业务需求可能已经发生了变化,而那时已建好的服务已经没有什么用处了。
This introduces the risk that the business requirements would change before the application is put into production and that speculative services would be built and not used.
在我和我妻子Ingrid相爱之前,我经历了12年的单身生活,而那段生活是很愉快的。
I was single for twelve years before my wife Ingrid and I fell in love. Very happily single.
而那科学家们称之为暗物质的未知物体组成的把万物聚集在一起的看不见的网,在被大型强子对撞机证实另为他物之前也被认为是天使的功劳。
And the web of unseen, unknown material that scientists call dark matter, holding everything together, might as well have been spun by the angels until the Large Hadron Collider proves otherwise.
而那些之前将大笔资金投入贵金属的人在去银行的路上则一直都在笑。
And those who previously poured money into the precious metal are laughing all the way to the bank.
就在几个月之前,他被诊断出有白血病,而那种疾病似乎企图用一种及其迅速和残忍的方式夺走他的生命。
Just months before, he'd been diagnosed with Leukemia, a thing that seemed intent on doing what it came to do in a quick and merciless manner.
而那些在反欺诈领域工作的人认为,在认识到此问题的严重程度之前,无法采取补救措施。
But those who work in the counter-fraud field argue that, until there is recognition of the extent of the problem, steps cannot be taken to remedy it.
他们知道通过这些尝试,他们早晚会成功,而那些失败的人往往在真正开始之前就已经放弃了。
They know that by trying many things, they will succeed sooner or later, while unsuccessful people tend to give up before they've even started.
之前我们就一直有点念头而那就是那段时间我们努力合作的一点。
We had wanted to do that for a while and that was just the tip we were on at the time.
而那句“简直好到难以置信”感觉好像要把我们拉回我们之前那些老式的思考方式中。
It's that "it's too good to be true" feeling that tries to push us back into our old ways of thinking.
看着视频,那些看喜剧节目的人心情明显比没看之前好多了,而那些看安装地板的视频的人心情没有变化。
Following the videos, those that viewed the comedy routine were in significantly better moods after viewing the video, while the mood of those that viewed the flooring video had not changed.
在你退休之前你没有机会很好的享受生活,然而那时你只有顾着身体的份了。
You don't get a better chance to enjoy life after that until you retire, and then only if you've looked after your joints.
这为女星在遇到詹姆斯之前,总是陷入一连串不太成功的感情关系中。她与詹姆斯是在她安排她的教子与詹姆斯刚开播的电视秀“怪物车库”里时,初次会面的,而那时詹姆斯刚从一名保镖加入到一支重金属乐队中。
The actress had a string of unsuccessful relationships before meeting James, a former bodyguard to heavy metal groups, when she took her young godson to the set of his now-axed TV show Monster Garage.
她在此之前从未做过有关动物的研究工作,而那些黑猩猩当然也不与她合作。
She had never done research with animals, and the chimpanzees were certainly not cooperating28 with her.
健康的心脏可以承受这种变化,而那些心脏病患者在蒸桑拿浴之前应该征求医生的建议。
A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice.
据说现在这个箱子是用它之前的一个箱子的碎片做成的,而那一个则是当第一批人来到这里定居时做的。
There was a story that the present box had been made with some pieces of the box that had preceded it, the one that had been constructed when the first people settled down to make a village here.
所知道的最古老的岩石出现在大约40亿年之前,而那也仍然是在地球表面冷却和水开始汇聚到浅滩之后大约5亿年才形成。
The oldest known rocks are about 4 billion years old, yet even they formed roughly half a million millenniums after our planet's surface cooled and water first pooled into shallow seas.
健康的心脏可以承受这种变化,而那些心脏病患者在蒸桑拿浴之前应该先征求医生的建议。
A normal heart can handle these stresses but those with heart trouble wishing to begin to use a sauna should seek a doctor's advice.
之前的研究已经表明,两岁的孩子已经学会了帮助他人,这就是利他主义的表现之一;而那些六岁到七岁之间的小孩则表现出公平感。
Previous studies had shown that two-year-old children can help others, which is considered a sign of altruism, and that those who are between six and seven years old show a sense of fairness.
他们知道通过这些尝试,他们早晚会成功,而那些失败的人往往在真正开始之前就已经放弃了。
They know that by trying many things, cheap ugg boots sale they will succeed sooner or later, while unsuccessful people tend to give up before they've even started.
而那些之前对此复杂性没有切身体验的公司职员是最脆弱的。
Corporate workers who have not been previously exposed to the complications of running a business are most vulnerable.
而那些之前对此复杂性没有切身体验的公司职员是最脆弱的。
Corporate workers who have not been previously exposed to the complications of running a business are most vulnerable.
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