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(120) / 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(93) / 评论(0) 分类 TED演讲教育篇
学英语单词
acutifolia
anhypostatic
anthropopathite
antibonding state
arbitrages
asterope (21 tau)
Bataysk
binary synchronous communications (BSC or bisync)
black-a-vised
brambleclaw
branch road
Carex subtransversa
cholemic intoxication
clorinda
closed loop throttle body fuel injection
cmosfet oscillators
Comendador Viana
cyclopropanetrione
demand carried forward
draw sb sharp
el-aksurs
electrothermal analysis (eta)
ethnomusicologically
fast neutron collimator
fire refined metal
fish cake
flang
fundamental interactions
genus Gerardia
geometrical buckling
glasslike polymer
grid of screw dislocations
Guthrie rest
guys and dolls
have someone in derision
health-care assistant
Hecabe
horizontal divergence
hour hand
iliocaecal artery
import admission
intifida
lambdacismus
lataniers
liquid pack
liquid-solid adsorption
Mayu
median line
meekly
melody
mobile monitoring system
MSSSCA
mudrocks
newfoundlands
nigguz
non-reimbursable assistance
nondegradation
nulli-tetra compensation
onery
open anchorage
optical tapered waveguide
osphrencephalon
osteocrania
ostrogorskis
parathyroid gland
past-lifest
peat-moss
performance enhancement
pipe-still heater
plate pack
propitiousness
qualifying adjective
rabbittes
reduced sampling plan
rejuvenex
sammiers
Scabiosa L.
schapska
scut monkey
seawater cell
self reinforcement
sicca pharyngitis
snipin'
St-Projet
steel for cast chain cables
Stone, Lucy
superstar
supply centre
surface-air leakage
Swedenborgianist
symmetrical current
tapping attachment
technical atmosphere
time banking
tords
transmissible spongiform encephalopathy
trempealeau
tumor of cerebellar fossa
useful length of screw thread
Wentworth, William Charles
whole-hog
wrapping material