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(单词翻译)
This is Scientific American's 60-Second Science, I'm Karen Hopkin, this will just take a minute.
Shakespeare once said: A rose by any other name would smell as sweet. And that is true today as it was 400 years ago. What's different now, though, is their smell doesn't travel as far as it used to. Or so say scientists in a study that appears online in the journal Atmospheric1 Environment, researchers at the University of Virginia made a mathematical model to show how the fragrance2 of flowers floats through the air. They found the presence of pollution slows the scents4 down. Prior to the Industrial Revolution, the sweet smell of roses might drift for three quarters of a mile. Now, downwind of a major city, a flower's delicate bouquet5 can't make it a full thousand feet. That's because the scent3 molecules6 produced by flowers are volatile7, they chemically react with ozone8 and other pollutants9, and ka-bloomy. No more eau d’springtime. The effect might pose a minor10 nuisance to modern poets, but it's a major problem for flowering plants and the insects that pollinate them, bumblebees find flowers by smelling them, less aroma11 attracts fewer bees which ultimately means fewer flowers. So stop and smell the roses, if you're close enough.
Thanks for the minute, for Scientific American's 60-Second Science, I'm Karen Hopkin.
1 atmospheric | |
adj.大气的,空气的;大气层的;大气所引起的 | |
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2 fragrance | |
n.芬芳,香味,香气 | |
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3 scent | |
n.气味,香味,香水,线索,嗅觉;v.嗅,发觉 | |
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4 scents | |
n.香水( scent的名词复数 );气味;(动物的)臭迹;(尤指狗的)嗅觉 | |
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5 bouquet | |
n.花束,酒香 | |
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6 molecules | |
分子( molecule的名词复数 ) | |
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7 volatile | |
adj.反复无常的,挥发性的,稍纵即逝的,脾气火爆的;n.挥发性物质 | |
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8 ozone | |
n.臭氧,新鲜空气 | |
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9 pollutants | |
污染物质(尤指工业废物)( pollutant的名词复数 ) | |
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10 minor | |
adj.较小(少)的,较次要的;n.辅修学科;vi.辅修 | |
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11 aroma | |
n.香气,芬芳,芳香 | |
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