Over time, the Silk Road changed people in both the East and West.

随着时间的推移，丝绸之路改变了东西方的人们。

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Around the world, people changed sleep patterns thanks to the start or end of daylight savings time.

在世界各地，由于夏令时的开始或结束，人们改变了睡眠规律。

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At night time, the dolphins' metabolism changed dramatically and showed similar characteristics to that seen in people with type 2 diabetes.

在夜间，这些海豚的新陈代谢明显改变，显示出与2型糖尿病患者类似的特征。

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and that social norm is just something that's changed over time." And people share a lot.

VOA: standard.2010.07.23