To make the experience truly worthwhile, there has to be a goal behind the decision to study abroad.
为了让这段经历真正有价值，出国留学的决定背后一定要有目标。
In the last decade there has been an explosion of knowledge about the social brain and how the brain works when groups coordinate decision making.
在过去十年里，关于社会脑以及它在群体协调决策时如何工作的了解有了爆炸性的发展。
Throughout American history there has almost always been at least one central economic narrative that gave the ambitious or unsatisfied reason to pack up and seek their fortune elsewhere.
纵观美国历史，几乎总是至少有一个中心经济叙事，让雄心勃勃或不满足的人有理由收拾行囊，到别处去寻找财富。
Throughout American history, there has almost always been at least one central economic narrative that gave the ambitious or unsatisfied reason to pack up and seek their fortune elsewhere.
纵观美国历史，几乎总有至少一个中心经济叙事，让雄心勃勃或不满现状的人有理由收拾行囊，到别处去寻找财富。
The World Health Organization says there has been a sharp increase in the number of children in developing countries who weigh too much.
世界卫生组织表示，目前发展中国家体重超标的儿童数量急剧增加。
At some point, there has to be a limit on how much land can be used for sugar cane production—certainly if you want to preserve natural habitats and native wildlife.
有些时候必须限制用来生产甘蔗的土地面积——当然，如果你想保护自然栖息地和本土野生动物的话。
Despite the general acknowledgment of his genius, there has been a noticeable reluctance to rank him with, say, Schumann or Brahms.
尽管人们普遍承认他的天赋，但人们明显不愿意把他与舒曼或勃拉姆斯相提并论。
The sheer volume of information out there has changed the way we absorb it.
大量存在的信息改变了我们吸收信息的方式。
In terms of evolution, there has to be a reason for barking, or it probably wouldn't be there.
从进化的角度来说，狗汪汪叫肯定是有理由的，要不这叫声肯定在漫长的进化过程中给淘汰掉了。
'I believe that there has got to be a home for any of the things I've owned,' Ms. Fitzpatrick says.
她说，我认为，我曾拥有过的每样东西都应该有个家。
I can understand that when a player scores there has to be some spontaneous reaction to a goal.
我能明白一名球员取得进球后的兴奋，那种兴奋会使他不由自主地做出一些行为。
The latest report also shows there has been a significant drop in the number of new HIV infections.
最新的报告同时也显示新发艾滋病病毒感染人数有明显的下降。
So there has rarely been greater need for a cool, dispassionate voice to sift through the facts.
所以，当下亟需的就是一个冷静理智的代言人帮助甄选事实。
Yet there has been very little research into this subject, in part because of the paucity of data.
然而目前来说几乎没有关于这个主题的研究，部分原因是由于研究数据的缺乏。
As the healthcare debate picks up in the us, there has been much discussion about how to pay for it.
在美国，有关医疗的争论正日趋激烈，人们对如何支付医疗费用展开了大量讨论。
But once I learned to trust him (you can imagine his efforts!), there has been no looking back for us.
我一学会信任他(你可以想象他的努力！)，过去的隔膜就统统消失不见了。
Utilities don't even know there has been a power outage until customers pick up the phone and call them.
公共事业公司甚至要等到客户打电话给他们的时候才能知道发生了断电事故。
But there has always been an alternative path, one that saw the Web as a worthy tool but not the whole toolkit.
但总是有其他的观点：只是将万维网看作一个有价值的工具，而不是完整的工具包。
The World Health Organization says there has been a sharp drop in the number of deaths among children under age five.
世界卫生组织表示，五岁以下儿童的死亡率有大幅度下降。
For every injustice that has ever existed, there has always been a group of people fighting to end that injustice.
对于每个曾经存在的不公正，总是有一群人为结束这种不公正而奋争。
Even though "Back to School" sales signs are already in shop Windows, there has been little movement on Capitol Hill.
尽管商店的橱窗上已经挂上了返校商品的促销标志，国会方面依然没有什么行动。
Recently, though, there has been a notable increase in interaction with psychology and history — a welcome development.
然而，近来它与心理学和历史的相互影响明显增多了—这是一个可喜的进步。
And there has been a spectacular growth in legal services, which are vital in backing the work of a global financial centre.
法律相关的服务也有长足的增长，这对维持全球金融中心的地位提供了良好的保证。
With this method I always remember that there has to be a contrast between your imagination and the reality of the photo.
当使用该方法进行创作时，我总是牢记这样一点：在照片中，个人想象和现实必须形成鲜明对照。
With this method I always remember that there has to be a contrast between your imagination and the reality of the photo.
当使用该方法进行创作时，我总是牢记这样一点：在照片中，个人想象和现实必须形成鲜明对照。
应用推荐