【独家发布】The New York Times -2016-03-13 PDF

thxlots

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楼主 大好人

many thanks

川普难道要获得提名？？？不会吧。

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You're hiking alone in the wilderness, lost in your thoughts, when suddenly you find yourself trapped in quicksand and sinking fast. Certain muddy death? Not quite. While quicksand isn't nearly as dangerous as it looks in the movies, it is a real phenomenon. Just about any sand or silt can temporarily become quicksand if it is sufficiently saturated with water and/or subjected to vibrations, such as those that occur during an earthquake. Here's what to do if you find yourself with that sinking feeling.