到这个世纪末，已经建成了一个巨大的道路网络，有居民街道、公路和高速公路，这些都是为了承受数百万的车流量而修建的。

By the end of the century, there was an immense network of paved roads, residential streets, expressways, and freeways built to support millions of vehicles.

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洋葱已经注意到其网站流量的20%来自移动设备，主要来自苹果，当然这些增长也在计划之中。

The Onion already sees 20% of its web traffic coming from mobile devices, mostly Apple's, and this is set to grow.

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所以，它变得非常重要，当你在设计和给一个反应堆建立模型的时候，了解到在核心外边的实质，流量是否会在那个区域达到顶峰。

So it becomes very important to, when you're designing or modelling a reactor, understand the nature of what's outside the core and whether or not fluxes will peak in that zone.

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