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塞内加尔推行生育间隔 或可减少贫困 On a busy day at the Fith Mith Clinic in a suburb of Gudiawaye, just outside of Dakar, MamyDiop had just given birth to her third child, only one year and three months after the previous.She did not k

发表于:2018-12-16 / 阅读(55) / 评论(0) 分类 VOA标准英语2016年(七月)

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. Not too long ago, scientists had to hoof it to the library to review the literature. And they had to flip through a card catalog to find that dusty old v

发表于:2018-12-24 / 阅读(30) / 评论(0) 分类 Scientific American(七)月

Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t

发表于:2019-01-12 / 阅读(73) / 评论(0) 分类 2015年VOA慢速英语(七)月

International Conference Highlights Family Planning in Senegal With the global population reaching 7 billion this year, doctors and health officials are advocating better family planning methods. Senegal, where some 2,000 international delegates gath

发表于:2019-01-13 / 阅读(47) / 评论(0) 分类 VOA标准英语2011年(十二月)

Bird-friendly Bladeless Wind Turbine Mimics Nature Energy created by conventional three-blade wind turbines is cheap, sustainable and pollution-free. But according to current estimates, the devices' fast-moving blades kill up to 300,000 birds annuall

发表于:2019-01-14 / 阅读(90) / 评论(0) 分类 VOA标准英语2015年(十一月)

ROBERT SIEGEL, HOST: Ridley Scott's science fiction film Blade Runner was a modest hit in theaters in 1982 and a massive one later on video. Scott's punk noir dystopia initially got mixed reviews, but the director kept re-cutting his film. And by 200

发表于:2019-01-16 / 阅读(52) / 评论(0) 分类 2017年NPR美国国家公共电台10月
学英语单词
6-mercaptopurine(6-MP)
a happy accident
a score of
activation energies
actuated error
adult type tuberculosis
Air Force Act
all-the-ways
allowable sample size
animately
atticism
baby bouncer
baseline ejection shell
bitt
blomquist
broader term
Canha, R.
cerebrology
clothes-peg
console converter
consumer-credit business
continuous time series
courtesy flag
diallings
diffusion brazing
dimnesses
doublehands
electromagnons
elegise
endurantists
equatorial limb
etchevarria
exhalence
femtoamperes
fissurations
foreign matter equipment and material
FRAD
gneissic dome
high speed adapter subchannel
homophobically
hybrid security
imitableness
Iranianisms
Karl Wilhelm Scheele
kiloponds
legendre
lithographic plate
Litsea chinpingensis
loperamide
magazine attachment
Martindale
mastice
mikus
myristicene
naoh
new-style
NTLDR
outleading
pacadile
panthelism
parallel tined reel
parturient emphysema
pass in review
paulina
pay-per-view
petroclastic
pilages
plugs
polo pony
pressurized air brakign
Reaburn, Mt.
reaumuria soongorica (pall)maxim.
respect and admire
rock pression sclerometer
russert
RVDA
sand sediment trap
self-antigen
semi-rigid receptacle
set phrase
shagroon
short stapled cotton
silvered glass
sneak preview
soucy
sour humus
Spock-marked
subsidiary file
substrate feed logic
table-leg
tendon transplantation
tenible
the day is doubtful
unabled
universal hour
vienna philharmonic orchestra
waterproof canvas
weave cross-section diagram
whisper gallery
yakisoba
zero valued base
zinc-oxide calcine