北美洲是北亚美利加洲的简称，位于西半球的北部。东滨大西洋，西临太平洋，北濒北冰洋，南以巴拿马运河为界，同南美洲分开。
北美大陆
双语例句原声例句
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北美大陆的地形严格限制了进攻通道。
The North American continent's geography severely limited the lines of attack.
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当探险家们第一次踏上北美大陆时，天上和地上到处都是种类多得惊人的野生动物。
When the explorers first set foot upon the continent of North America, the skies and lands were alive with an astonishing variety of wildlife.
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现在的北美大陆和欧洲大陆大约在40亿年前是连接在一起的，在那时，加勒多尼亚山脉与现代的喜马拉雅山脉一样雄伟。
About 400 million years ago, when the present-day continents of North America and Europe were joined, the Caledonian mountain chain was the same size as the modern Himalayas.
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No continent, you could argue, had ever been quite made readymade if you want--for railroads quite like North America.
没有哪个大陆,你可以为此争辩,像北美这样,及其适合铁路的发展
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