Meteor showers and solar eclipses which oc-curred as far back as in the Xia Dynasty ( 2070BC ～ 1600BC) are recorded in ancient books, and are thought to be the earliest astronomical accounts in the world.

1、

China has a long history, and book collection can be traced to the Xia dynasty, the unique Chinese characteristics collection system had been formed until the late Qing dynasty.

中国的藏书历史源远流长，可以上溯至夏朝，至清末形成了独具中国特色的藏书制度。

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2、

The Xia Dynasty by then had not only erected city walls, but also established its own army, penal code and prisons.

夏朝时不仅建有城墙，还有军队、刑罚和监狱。

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3、

The Xia Dynasty ended. With the development of productivity and the increase of captures, the private ownership came into being gradually and doomed to be reflected in politics.

由于生产力的进步和俘虏的增加，私有财产制度逐渐出现了。

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4、

Yu of the Xia Dynasty exploited the road towards civilization in the Huanghe River Basin.

夏禹的功业，据说开辟了黄河流域迈向文明的道路。

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5、

Because its spatio-temporal range falls into the Xia Dynasty based on the historical record, the Erlitou culture becomes the primary object in exploring the first dynasty in Chinese history& the Xia Dynasty and its culture.

二里头文化是中国古代国家形成和发展的重要时期，加上它的年代和分布地区与文献记述的夏王朝的时间及范围大体一致，因此它也成了学术界探索夏王朝及其文化的主要对象。

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6、

Tang adopted Yi Yin's suggestions to stop paying tribute to the Xia Dynasty in order to sound out the strength of Jie.

汤还采纳伊尹的建议，停止朝贡夏朝以试夏桀的实力。

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7、

The Xia Dynasty began a period of family or clan control.

夏代开始，为期家庭或部族控制。

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8、

Following its creation in the Xia Dynasty succeeding reigns continued to use the calendar but modified it from time to time.

继在夏王朝成功建立的王朝继续使用日历，但不时修改。

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9、

A Question About Whether the Xia Dynasty Existed in History

关于历史上是否存在夏朝的问题

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10、

During the Xia Dynasty, there was a crack archer named Hou Yi.

夏朝时，有一位神射手，叫后裔。

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11、

Shang Tang took this opportunity to revolt and overthrew the Xia Dynasty.

商汤抓住这个机会反抗并推翻了夏朝。

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12、

Farming exploiting history of Yu of the Xia Dynasty in the legend

度九山：夏禹传说的农耕开发史解读

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13、

Is the Xia Dynasty an intangible mirage?& A discussion with Mr. Chen Chun

夏代是杜撰的吗&与陈淳先生商榷

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14、

The Xia Dynasty saw the first introduction in Chinese history of the slave system.

中国历史上最初进入奴隶社会是在夏朝。

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15、

The Xia Dynasty could restore its dominion and gain further development, only because it had relatively solid social foundation.

夏王朝因为拥有比较深厚的社会基础，才能恢复它的统治，并取得进一步的发展。

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16、

The good Abbot of Holywood is a strong pillar to the weak.

“圣林”修道院的主持是弱者的万无一失的靠山.

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17、

He is kind and gentle to the weak.

他对弱者总是友好和善.

《简明英汉词典》

18、

In this case the wave is said to have been diffracted.

在这种情况下,据说,波发生了衍射.

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19、

The wave is mechanical, the smile is a response to duty.

她挥手的动作是机械的, 微笑是为了尽本份.

名作英译部分

20、

The wave here has a length of 250 feet and a height of 10 feet.

这里的浪有250英尺宽10英尺高。

《柯林斯高阶英汉双解学习词典》