Augmented Reality, technology that superimposes a layer of data on top of a user's view of the real world, is one of the hottest things around these days.
将信息层叠加在真实世界视角的增强现实技术是近来最为热门的话题。
Yes, math and science education in China and Eastern Europe is still top notch on the planet but Western world should be patient because things are changing fast.
是的，在这个星球上，在数学和自然科学教育方面中国和东欧国家还是坐着头号交椅。但是西方世界需要耐心。因为事情的变化是很快的。
Sometimes, you feel as if you were on top of the world. But occasionally you feel horrible, and you lose things and you can't focus on your schoolwork.
有时呀，当你感觉自己处在世界之颠，有时呀，你会感到恐怖，你会失去一些东西，你不能专心做好作业。
I also felt happy when I heard this. I cleaned the dirty things at once and came back home. It seemed I was at the top of the world.
我听到了后也很高兴，我清除完垃圾后就回家了，我当时觉得我是世界上最快乐的人。
I also felt happy when I heard this. I cleaned the dirty things at once and came back home. It seemed I was at the top of the world.
我听到了后也很高兴，我清除完垃圾后就回家了，我当时觉得我是世界上最快乐的人。
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