动物在寒冷的冬天有三种主要的生存方式：休眠、适应或迁徙。

There are three main ways that animals survive the cold in winter: sleep, adapt or migrate.

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就在几个小时前，我站在坎姆尼克斯的主要大街上，仰望云雾环绕中的阿尔卑斯山最高峰——勃朗峰。

Hours earlier, I'd looked up from Chamonix's main street to see Mont Blanc, the Alps' tallest mountain, shrouded in mist.

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《步步登高》以美国人的视角写就，主要面向北美读者；但其中蕴含的许多智慧放之四海而皆准。

"The Way Up" is written from an American perspective, mainly with the North American reader in mind; but a lot of the wisdom contained in it is fairly universal in its application.

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What was neat about it is before that time, the predominant species to use for air conditioning or refrigeration was ammonia.

在这之前是很整洁的，之前最主要的用于空调或者冰箱的,物质是氨。

麻省理工公开课 - 固态化学导论课程节选

When I say dirty, I am referring mostly to like a graffiti. There's a lot of graffiti on walls, on buildings.

我说的脏，主要指的是涂鸦。大楼墙上到处画满了乱七八糟的涂鸦。

哈莱姆很独特 - SpeakingMax英语口语达人

Now, the concept of ritual impurity was a central and integral feature of most, if not all, ancient religions.

现在，仪式上的不洁已经是大部分宗教,主要的，整体而言的特点。

耶鲁公开课 - 旧约导论课程节选