物竞天择确保只有最适应环境的物种才得以生存下来，把基因传递给下一代。
Natural selection ensures only the fittest survive to pass their genes on to the next generation.
一个同样重要的标准是，一个物种是否有能力在全球任一生态灾难中生存下来。
An equally important criterion is the ability of a species to survive random global ecological catastrophes due to impacts.
现在，告诉我，你认为雪兔发生了哪种进化，从而能够在缅因州的冬天生存下来？
Now, the snowshoe hare, tell me, what sort of adaptations do you think it has developed that help it survive the Maine winters?
老派阿曼派在殖民时期来到美国海岸，在现代世界以独特的小群体形式生存下来。
The Old Order Amish, who arrived on American shores in colonial times, has survived in the modern world in distinctive, small communities.
一个物种生存下来的标准是它能否成功地与其他物种竞争并适应缓慢变化的环境。
The standard criterion for the survival of a species is its success in competing with other species and adapting to slowly changing environments.
他们通常以10到20人的队伍作战，很坚强，依靠艰难的地形和糟糕的交通条件生存下来。
They usually operated in bands between ten and twenty strong and relied for survival on difficult terrain and bad transport.
那些拥有准确、可靠的最新信息来解决日常问题、解决商业、社会和家庭生活中的关键问题的人，将会生存下来并取得成功。
Those people who have accurate, reliable up-to-date information to solve the day-to-day problems, the critical problems of their business, social and family life, will survive and succeed.
在恐龙主宰着白天的局势的时代，我们的哺乳动物祖先之所以能够勉强生存下来，可能只是因为他们找到了在夜间谋生的方法。
In the time when the dinosaurs dominated the daytime economy, our mammalian ancestors probably only managed to survive at all because they found ways of scraping a living at night.
尽管欧洲的君主们的智慧无疑会让他们足以在未来一段时间内生存下来，但对于英国王室来说，他们最担心的就是重蹈西班牙的覆辙。
While Europe's monarchies will no doubt be smart enough to survive for some time to come, it is the British royals who have most to fear from the Spanish example.
但是，强者生存下来并笑到了最后。
第二要确保如果失败了自己可以生存下来。
And secondly, you could survive if it doesn't turn out well.
我们勉强在过去投行横行的40年间生存下来。
We've (barely) lived through a 40-year period in which investment Banks have imposed themselves on us.
他表示，银行将生存下来，投资人的储蓄将得到保障。
And he said Banks will survive and investors' savings will be protected.
或者我该自我安慰说，他们可能不会在经济衰退中生存下来。
Or do I console myself with the thought that they probably won't survive this recession?
多亏真菌从沙子中释放出营养，才使树木和其它植被生存下来。
Trees and other vegetation manage to survive thanks to fungi that release nutrients from the sand.
您将学到的每一项策略都将帮助您在组织中生存下来并取得成功。
The strategies you'll learn in each area will help you survive - and succeed - in your organization.
我是个幸存者——是一个经历过苦难而且生存下来的活生生的榜样。
I'm a survivor - a living example of what people can go through and survive.
除草剂处理后大约2%的植物生存下来。说明已经发生了基因互换。
About 2% of the treated plants survived herbicide treatment, showing that gene swaps had occurred.
我看见了一只有毛的大蜘蛛，它不能生存下来因为它的头被撞击了。
I also encountered a very large furry spider, which didn't survive it's head being bashed.
我们必须继续帮助他们生存下来，而我们也必须帮助她们更好的生存。
We have to continue helping them survive, but we also have to help them survive well.
哈马斯将会生存下来，而且阿拉伯的思维会说，犹太国并不属于中东。
Hamas will survive, and with it that strain in Arab thinking which says that a Jewish state does not belong in the Middle East.
但阿萨德不仅在美国的压力下生存下来，而且成为要认真对付的力量。
Still, Mr Assad has managed somehow not only to survive American pressure but also to make himself a force to be reckoned with.
好吧，我们可能生存下来的唯一办法，在此生活质量处于险境，是核聚变。
Well, the only way that we might survive — the quality of life is at stake here is nuclear fusion.
但一旦他们能在这场大型商场级战斗中生存下来的话，他们将会得到丰厚的回报。
But there will be handsome rewards for those that can survive this battle of hypermarket proportions.
或者耐酸性的鱼比被嗅觉扰乱方向的同伴们繁殖得更快而适应并生存下来？
Or can they adapt, with acidity-resistant fish breeding fast enough to replace those lost to olfactory disorientation?
无论别人告诉你多少次这很安全，你在亲自经历并生存下来一次之前都永远不会相信。
No matter how often people tell you it is safe - you will never believe it until you have survived the experience.
无论别人告诉你多少次这很安全，你在亲自经历并生存下来一次之前都永远不会相信。
No matter how often people tell you it is safe - you will never believe it until you have survived the experience.
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