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In the last 25 of the many thousands of years which separate the discovery of electrum from the discovery of electrons, we have at last come to realize how much the properties of the former depend on the behaviour of the latter.发现金银合金到发现电子，中间经过了千万年，但只是在最后25年，我们才终于认识到，金银合金的性质在很大程度上要取决于电子的行为。

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只有在提高效益的前提下保持快速的经济增长，我们才能缓解企业生产经营困难，减轻就业压力，促进经济结构调整，增加财政收人，防范金融风险，保持社会稳定。Only by maintaining rapid economic growth on the basis of better performance, can we mitigate the operating problems plaguing our enterprises, lighten the pressure of unemployment, promote strategic restructuring of the economy, increase state revenue, prevent financial risks and maintain social.

这著名的剧毒的蕲蛇，我早就听说过许多传闻，通常乡里人叫作五步龙，说是被它咬中的人畜，不出五步就得倒下毙命。也有说凡进入它待的地方五步之内，都难逃命。所谓强龙压不过地头蛇，这谚语的出处想必也来自于它。I've long heard many stories about the renowned and deadly Qichun snake. The villagers commonly call it the “five-steps dragon” and say that if bitten by it, man or animal will drop dead before taking five steps, or that if one goes within five steps of where it is one will have trouble escaping with one's life. This must be the derivation of the saying, "The dragon cannot overcome the snake on the ground.”

我们的研究发现，中国各地区的经济增长与要素投入和全要素生产率的提高密切相关。Our research finds that the economic growth in every region in China is closely related to the factors input as well as to the improvement of total factor productivity.

虽然大家都清楚，一个人外表可能影响他在社会上和经济上的成功，但对健康来说，美貌显然“在医学上不是必须的”。While it is clear that a person’s appearance can affect his or her social and economic success, it is not obvious that beauty is “medically necessary” for well-being.