从挖掘物中获取的浮选样本让植物学家能够研究植物采集习性的转变，就好像是用望远镜观察不断变化的景致。

The flotation samples from the excavations allowed botanists to study shifts in plant-collecting habits as if they were looking through a telescope at a changing landscape.

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到目前为止她的队伍已经绘制出天气怎样的变化会改变一些物种的习性，从加拿大的山猫到加利福尼亚的红杉。

So far her team has mapped out how climate change might alter the habitats of a dozen species, from the Canadian lynx to the California redwood.

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经济学家认为，他们不用参考文化习性就能够解释各个国家与各个时代的储蓄行为变化。

Economists think they can explain changes in saving behaviour over time and across countries without reference to cultural norms.

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