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如何在利用地球生态系统提高人类生活水平的同时，缓解该系统所承受的压力，完全取决于人类社会。It is the human societies to ease the strain we are putting on the nature services of the planet, while continuing to use them to bring better living standards to all.

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Several times on his trips to China, which he made as a guest of the Chinese Government, Bill’s birthday occurred while he was in Beijing. 他作为中国政府的客人访问中国，比尔好几次都赶上在北京过生日。

Complicating the winter weather picture is that criteria for safe operations on a given runway snow condition differ from airport to airport, due to differences in grooving and pavements.复杂化的冬天气候状况使得各个机场之间在积雪的跑道上安全飞行的标准不相同，因为跑道路面和沟槽标准不同。

New sources of energy must be found, and this will take time, but it is not likely to result in any situation that will ever restore that sense of cheap and plentiful energy we have had in the past time.必须找到新的能源，这需要时间，而过去我们感觉到的那种能源廉价而充足的情况将不大可能再出现了。

A divorced woman is likely to find herself in an unenviable position. 一个离婚的妇女是很可能发现自己处在一个不令人羡慕的地位的。