For example, during past ice ages, glaciers advanced down through North America and Europe and gradually cut off parts of populations from one another.

例如，在过去的冰河时代，冰川向下穿过北美和欧洲，逐渐切断了部分人口之间的联系。

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By the early part of the twentieth century, scientists believed that four distinct glaciations had affected North America and Europe during the Pleistocene epoch.

到二十世纪初，科学家们认为，在更新世期间，有四次不同的冰川作用对北美和欧洲产生了影响。

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In both North America and Europe, fungus-causing diseases such as Dutch elm disease have killed off millions of stately trees that once gave beauty to forests and cities.

在北美和欧洲，像荷兰榆树病这样的真菌疾病已经杀死了数百万棵曾给森林和城市增光添彩的高大树木。

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The virus appeared to be leveling off in North America and Europe by year's end.

VOA: standard.2009.12.25

Because Mexico is a popular tourist destination,Swine Flu quickly spread beyond North America to parts of Europe and Asia.

VOA: standard.2009.12.25

Toral says that aging patients from North America,Europe, Australia and Japan also will look for places with plenty of access to low-cost care.

VOA: standard.2009.12.23

In much of North America and Europe, Facebook's monthly active-user growth has slowed of late.

WSJ: HEARD ON THE STREET: Facebook Tracks Ascent of Google

Another draw is an impressive array of visiting faculty from China, Japan, North America and Europe.

FORBES: Plugging a Math Gap

North America and Europe may have the widest gap between financial exchanges and the real economy.

FORBES: Are Stock Exchanges Failing?