They can go beneath the ice, and then to hibernate as the ices closes in, until we need them to carry out their research in unreachable areas.
它们能潜入冰层下面，然后结冰时就进入冬眠，直到我们需要它们在无法到达的地方进行研究。
We need them to imagine the United States as a place where they can be productive for a while without committing themselves to staying forever.
我们需要他们将美国想象成一个暂时能让他们有所成就而不需要承诺永远居住的地方。
As long as the older forms of knowledge are stored somewhere in our networks, and can be found when we need them, perhaps they're not really forgotten.
只要旧形式的知识储存在我们的网络中，并能在我们需要的时候被找到，或许它们就不会被真正遗忘。
我们什么时候需要工作？
我们再次需要他们。
我们现在需要他们。
我们需要他们，先生。
But we take on casual staff when we need them.
但有需要时我们也会雇临时工。
我们真的需要急救医生。
Unfairly neglected, we even forget them sometimes when we need them.
由于疏忽，在我们需要它们的时候，有时却忘记了。
We can't have a "real" system without them, but we'll create them when we need them, not before.
没有它们我们就没有“真正”的系统，但当我们需要时我们才会创建它们，而不是事先创建。
He adds that YAGNI reminds us as programmers not to add features to software before we know we need them.
他还说，YAGNI提醒我们，作为程序员，在没有搞清楚是否需要某些特性前不要向软件添加这些特性。
Instead, we learn about threads AD hoc, adding new tips and techniques to our toolboxes as we need them.
相反地，我们临时学习线程，在需要时向我们的工具箱添加新的技巧和技术。
We want to support more women-owned businesses, because at the end of the day, we need them to be successful.
我们打算支持更多妇女所有的企业，因为我们的终极目标是帮助它们取得成功。
And boy did we need them to do that, because we soon faced full frontal assaults from the both Google and Apple.
而且，我们的确需要他们，因为很快我们就面临了来自谷歌(Google)和苹果(Apple)的全面正面挑战。
We need them to realize that what makes you a man is not the ability to have a child -it's the courage to raise one.
我们需要他们认识到，不是有生孩子的能力，而是有抚养孩子的勇气才配称男子汉。
And we need them — they are keystone species for everything from building coral reefs to anchoring the ocean food chain to making a killer linguine and clam sauce.
而且我们也需要它们——它们是从建造珊瑚礁，到稳固海洋食物链，再到美味的蛤蜊酱意面的关键物种。
Or [are] able to go beneath the ice, and then to hibernate as the ices closes in, until we need them to carry out their research in areas which we cannot reach.
或者它们能潜入到冰层下面，然后结冰时就进入‘冬眠’，等需要它们到我们无以到达的区域进行研究时，它们再开始活动。
"As long as people are worried about whether we have adequate tools, it makes sense for us to get more tools even if we don't think we need them," says Mr Dudley.
“只要人们还担心我们有没有足够的工具，我们就有理由创造出更多工具，虽然我们觉得其实用不着。”Dudley如是说。
The fix, then, is for us to take advantage of the disk cache to make sure that the memory pages on disk that we must read at startup have already been loaded before we need them.
那么改进的是，利用磁盘缓存来确保在启动时要读取的磁盘上的内存页在我们需要之前已经加载好了。
Or perhaps it’s a symptom of our age, that the problems that bedevil us on Earth limit our interest in other worlds — just when we need them (and the inspiration they offer) most.
或者时代烙印使然，地球上许多问题困扰着我们，限制了我们对其他星球关注的兴趣——只有当我们最需要它们（及它们能为我们带来奇思妙想），我们才感兴趣。
So we need folks in Washington - the people whose job it is to deal with the country's problems, the people who you elected to serve - we need them to put aside their differences to get things done.
因此，我们需要华盛顿的人——那些本职工作就是处理国家问题的人，我们选出来为大家服务的人——我们需要他们将不同意见放到一边，把事情做好。
We know who we can depend on in our lives and turn to them when we need help.
我们都知道在我们的生活中谁可以信赖，当我们需要帮助的时候，我们就可以向他们求助。
I think we teenagers need to pass them on.
我认为我们青少年应该把它们传递下去。
Do you need to keep these letters or shall we bin them?
你需要保存这些信件吗，还是干脆把它们扔掉？
The problems are not serious. Nonetheless, we shall need to tackle them soon.
问题不严重，不过我们还是需要尽快处理。
We need to get them to move to the restaurant for their meal.
我们要让他们搬到餐厅吃饭。
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