面向对象设计最根本的魅力在于，它能够将真实世界领域中的实体及各自的行为建模为抽象的对象。

The fundamental beauty of object-oriented design lies in its ability to model real-world domain entities and their respective behavior as abstract objects.

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截至2005年，来自世界各个领域的、在学术界内外工作的专业社会科学家有近50万名。

As of 2005, there were almost half a million professional social scientists from all fields in the world, working both inside and outside academia.

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在自动驾驶领域，中国和世界其他国家处于同一起跑线。

Self-driving is an area where China and the rest of the world are on the same starting line.

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The god told Virgil that he wasn't ready yet for the manly, the adult, and the public world, the important world, of epic poetry.

神明告诉维吉尔，他还没有准备好接受，成人世界和公众世界，以及史诗的重要领域。

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But for those of you who decide to go on in computer science realize there is a whole interesting world that uses details like these in the world of networking, in hardware, to actually solve some real world problems.

而对于你们中想要在计算机科学,方面有所发展的人，将会遇到一个非常有趣的领域,在那个世界里，会有许多像网络世界，硬件界,这样或那样的小细节，但又往往是这些小细节才解决了许多真实世界里的问题。

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And this is true in all sorts of domains in the social world, in the economic world, in the political world and it's true as well in the physical world.

在社会世界,经济世界,政治世界的所有领域中都是这样的,在物质世界中也同样如此

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