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(51) / 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(36) / 评论(0) 分类 TED演讲教育篇
学英语单词
5-HTreceptor
a moe
adolescent dementia
aggresive
alcid
Alopecurus pratensis
axis of tetragohal symmetry
beneficiary country
briefly speaking
bus dust support
by-pass control
caretakers
chromium fog inhibitor
compensated spring scale
compression molding
consign to the flames
Dabakala
derivatives market
dial of meter
diverted heat
dot-carnage
drop hammer pile hammer
E'd up
edward, lake
efficiency thermal
error in indication
ESS (electronic switching system)
ethylene tetrachloride
exhaust clack (exhaust flap)
exploration cost
external circlip plier
extravagante
family Tayassuidae
flight of stairs
flux-trap loading
formula sub-element file
fractional scanning
functional regurgitation
Furman University
fyzabad (faizabad)
government audit
graphite oil
hexaplar
HFPPJV
hysteron proterons
identification particles
in half a sec
ingression speed
Italian iron
Kanā'is, Khalij al
Kartaly
leukoplakia penis
loan allocation
midlevel
morituri te salutant
nephrotoma (nephrotoma) definita
net cash balance
Network Data Management Protocol
oat cell sarcoma
oligotrophic water
over-engineerings
overload rating
palladium silver alloys
pastorage
peer-to-peer lending
Pfetterhouse
Platyasterida
pneumatic electronic hydraulic system
pollutional load
power of investigation
principal of business house
problem-oriented architecture synthesis
prometryn(e)
pump auto-change over device
railway mount
Red Volte R.(Volta Rouge, R.)
rift lake,rift-valley lake
running costs
Saigon rice
salvage hawser
serial read punch
shi'ia
single spark structure
slurried ballast
sodium bromoiridite
solitary intestinal glands
spearmint
stack-graphs
starboard boiler
stearo palmito-olein
subconnector
submergeable
summer pasturing
Swan Plain
tapery
throwther
THYR
two-bank radial engine
uglier
urban ecoeconomics
welfare management
zebrula, zebrule