For his research, Agassiz visited many places in the northern parts of Europe and North America, from the mountains of Scandinavia and New England to the rolling hills of the American Midwest.

阿加西为了研究，访问了欧洲北部和北美的许多地方，从斯堪的纳维亚的山脉和新英格兰走到美国中西部起伏的丘陵。

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Tourists like the areas of low mountains and beautiful lakes in the north, and the hills and pretty villages in the south.

游客喜欢北部的低山和美丽的湖泊，以及南部的小山和美丽的村庄。

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Hills and mountains are often regarded as the epitome of permanence, successfully resisting the destructive forces of nature, but in fact they tend to be relatively short-lived in geological terms.

丘陵和山脉通常被认为是永恒的象征，成功抵御着自然的破坏力量，但其实它们从地质学角度讲往往是相对短暂的。

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The Met Office has warned walkers and climbers to expect wintry conditions in Scotland's hills and mountains over the next few days.

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This is further helped by their terrain, which at first sight appears to be a tangled mass of mountains and hills running irregularly in all directions, but is actually hemmed in by well defined ranges on the outer periphery that make penetration of the area difficult.

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In this desert region of flat-topped mountains, russet hills, gravel plains and swathes of scrubland, the black rhino are not tagged or tracked by satellite, nor are their movements restricted by the boundaries of a huge game reserve.

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