For some of Peruvians who live near the Andes, life depends on the snow that's usually on top of mountains.
一些住在秘鲁的人离安第斯山脉很近,生活都要依靠山顶的积雪。
There was once an old wise man who live on top of a mountain. (I don't know why the wise men always like to stay on top of mountains.)
从前,在一座山顶上住着一位智慧老人(我不知道为什么智者总是喜欢住住山顶上)。
For example, some scientists have suggested using giant lasers on top of mountains to basically break apart harmful chemicals before they reach the stratosphere.
例如,有的科学家就建议在有害化学物质到达平流层之前,使用山顶上的巨型激光束从根本上将它们分离。
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