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(单词翻译)
Air is deceptive1 stuff. Even at sea level, we tend to think of the air as being ethereal and all but weightless. In fact, it has plenty of bulk, and that bulk often exerts itself. As a marine2 scientist named Wyville Thomson wrote more than a century ago: "We sometimes find when we get up in the morning, by a rise of an inch in the barometer3, that nearly half a ton has been quietly piled upon us during the night, but we experience no inconvenience, rather a feeling of exhilaration and buoyancy, since it requires a little less exertion4 to move our bodies in the denser5 medium." The reason you don't feel crushed under that extra half ton of pressure is the same reason your body would not be crushed deep beneath the sea: it is made mostly of incompressible fluids, which push back, equalizing the pressures within and without.
1 deceptive | |
adj.骗人的,造成假象的,靠不住的 | |
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2 marine | |
adj.海的;海生的;航海的;海事的;n.水兵 | |
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3 barometer | |
n.气压表,睛雨表,反应指标 | |
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4 exertion | |
n.尽力,努力 | |
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5 denser | |
adj. 不易看透的, 密集的, 浓厚的, 愚钝的 | |
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