家园抛身后，世界在前方。

Home is behind, the world ahead.

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我们不是生活在前者，就生活在后者之中，但是不能共同拥有这两个世界。

We either live in one or the other; we can't have it both ways.

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而在前一段时间亚马逊，世界最大网上零售商，作为云计算服务领域的先锋之一已经将该技术投入商用。

And Amazon, the world's biggest online retailer, is also a pioneer in the field of cloud-computing services, which it has been offering for some time.

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Before we start on the trip, I want the children to know where in the world they are and where they've come from.

在我们开始旅行前，我希望孩子们知道,他们在世界的那个位置,他们来自哪里。

麻省理工公开课 - 媒体、教育、市场课程节选

While he was still in Luxembourg, just before World War II broke out, he emigrated to the United States and finished his career in the Pacific Northwest where he helped make huge quantities of titanium.

他一直住在卢森堡，在二次世界大战爆发前，他移民到了美国,后半生在太平洋西北部,他制备了大量的钛结束了他的事业。

麻省理工公开课 - 固态化学导论课程节选