2015年，“翻译擂台赛”正式拉开帷幕。“英译汉”不仅需要有良好的英语水平，对中文的要求也不容小觑。只有将两种语言融会贯通、有机结合，才能完成一篇出色的翻译作品。同学们，快来一显身手吧！

你以为只有人类会做梦吗？科学家们研究发现原来动物们也会做梦！

"Almost all other animals are clearly observed to partake in sleep， whether they are aquatic， aerial， or terrestrial，" wrote Aristotle in his work On Sleep and Sleeplessness. But do other animals dream？

There are two ways in which scientists have gone about this seemingly impossible task. One is to look at their physical behavior during the various phases of the sleep cycle. The second is to see whether their sleeping brains work similarly to our own sleeping brains.

We humans do not usually realise we’re dreaming while we’re dreaming， but it becomes clear as soon as we wake up. Do zebra finches remember their dreams as dreams when they’re shaken out of their sleep？ Can they distinguish the real world from the one in their dreams？ We can say with a reasonable amount of certainty that the physiological and behavioural features of dreaming in humans have now been observed in cats， rats， birds， and other animals. Yet what it’s actually like to experience a dream if you’re not human remains a mystery.

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地球为什么是圆的？

盛佳瑞

直到今天，我们从来都没想过这样一个问题：地球为什么是圆的？为什么不是方的？方的？晕！那怎么可能？怎么不可能？因为……因为非常大的物体一般都是圆的。你还真说对了！原因就是重力。

你想啊，假如地球是方的，那么它表面的某些点就比另外一些点距离中心远，譬如顶点就会比其他点远得多。

因为重力对任何物体的作用都是相等的，所以在其作用下，物体表面就会逐渐削峰填谷，拉拽平整。球体是唯一一个表面任何点到中心距离都相等的几何体。但是，不对呀，我看过小行星的照片，那才叫奇形怪状呢！为什么它们就不是圆的呢？这是因为它们不够大，还不能让重力成为决定因素。如果一颗小行星突然变得和月球一样大，那么它就会重新调整自己，逐渐变成球体。