保护色

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Some people are worried that the more we learn about genetics, the closer well get to a day when we can choose all sorts of characteristics for our bab

发表于:2018-12-24 / 阅读(188) / 评论(0) 分类 Scientific American(三)月

But I want to jump up to shallow water now and look at some creatures that are positively amazing. 不过我现在还是想说说浅水里的世界,来看看那些神奇的生物。 Cephalopods -- head-foots. As a kid I knew them as calamari, mostl

发表于:2019-01-18 / 阅读(164) / 评论(0) 分类 TED演讲教育篇
学英语单词
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adeli
an account
Arthur II
articulationes cuneocuboideus
auger feed
balaus
Balsam Lake
bluff erosion
boundary continuum
brown supremacy
calving jack
cardiotachometry
cascade process of refrigeration
chapenonada
cinamolol
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clappa
Cnemidocoptes gallinae
colonization infection
Confcommercio
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cornfactors
creasote
cylindruria
dil.
dilatorily
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duct cable
effective seedling
electrooptical switches
electrosleeps
emersiherbosa
Esac
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ethyl triphenyl silicane
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fluctuation of metal line
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fuji-sans
fumetti
Harker
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hypamnion
Ilex austrosinensis
iron-platinum
John Hays
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mass spectrophot-ometer
mobile-health
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nonrestrictive relative clause
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performance fee
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quick service valve
racanelli
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reciprocal piezoelectric effect
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ri-
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