n. 低生育力;低受精力;低生殖力
[网络] 生育力低下;生育能力低下;生育能力不足
词型变化:名词复数形式 : subfertilities

Medieval Christmas was a weird mixture of Christianity and Pagan customs. Along with the boar's head no Christmas feast was complete without the giant Yule Log. If you've ever enjoyed a slice of choco

发表于:2018-12-07 / 阅读(75) / 评论(0) 分类 圣诞特辑

The full moon triggers a frenzy of activity. 满月会引发一连串狂乱的事件 It is the time of the highest tides. 海水在此时达到满潮 And in the oceans the full moon's bright light 在海中,满月明亮的胧光 is a mating call fo

发表于:2018-12-07 / 阅读(82) / 评论(0) 分类 2013年VOA慢速英语(三)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? There have been tremendous declines in fertility. The key has been the prevention of unwanted births, really around the globe. John Casterline directs the Initiative in

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 Scientific American(二)月

'Fertility treatment is seen as low-hanging fruit' SATURDAY Fertility Fairness campaign group said fertility treatment is seen as low-hanging fruit.

发表于:2018-12-29 / 阅读(89) / 评论(0) 分类 英语听力精选进阶版

Twins by Richard Sidaway What do the singer Alanis Morissette, the supermodel Gisele Bundchen and the ex-Secretary General of the United Nations Kofi Annan all have in common? The answer is, they all have a brother or sister who was born on the same

发表于:2019-01-02 / 阅读(196) / 评论(0) 分类 英语音频杂志

This is Scientific American's 60-second Science. I'm Cynthia Graber. This will just take a minute. Guys, heres another reason to eat your veggies: they might be good for your sperm. Some studies show that male fertility and whats called seminal quali

发表于:2019-01-08 / 阅读(108) / 评论(0) 分类 Scientific American(六)月

4.人口红利 Demographic dividend 全国人大常委会委员、中国社科院学部委员、人口与劳动经济研究所所长蔡昉表示,中国人口红利消失的拐点已在2012年出现,将对经济增长产生显著影响,我们应当

发表于:2019-01-08 / 阅读(67) / 评论(0) 分类 英语笔译

The Easter bunny has arrived, chocolate Easter eggs are in the shops, the daffodils are out, and the weather is getting better! Easter is a great time of year, but what are its origins? Originally Easter was called Pascha after the Hebrew word for Pa

发表于:2019-01-08 / 阅读(259) / 评论(0) 分类 英美文化

This is the VOA Special English Agriculture Report. Sorghum farmers in eastern Uganda, working with scientists, have tested some lower-cost ways to improve their soil. Little rain and poor soil fertility are problems in that area, as in other parts

发表于:2019-01-11 / 阅读(88) / 评论(0) 分类 VOA慢速英语2007年(六)月

Approximately 6.6 billion people populate the earth today, with an estimated 3.7 billion living in Asia. But over the past 50 years, economic and social modernization in the region has been accompanied by a remarkable drop in birth rates. Sociologist

发表于:2019-01-14 / 阅读(91) / 评论(0) 分类 VOA标准英语2011年(一月)

Schools in north China's Shanxi Province have been banned from organizing overseas study tours for profit after a plane crash killed two Chinese girls in San Francisco. The provincial education department announced the ban in a statement issued on Tu

发表于:2019-01-19 / 阅读(68) / 评论(0) 分类 世界各地新闻集锦

专家预测:2050年地球将面目全非 The earth's population could top nine billion by 2050, leading to an 'unrecognisable' world as people compete for scarcer resources a U.S. science conference heard yesterday. 有美国科学家警告,到205

发表于:2019-01-26 / 阅读(61) / 评论(0) 分类 实用英语

China's family planning 中国计划生育政策 Illegal children will be confiscated 违法生育就没收孩子 The one-child policy is not just a human-rights abomination; it has also worsened a demographic problem 独生子女政策不仅在人权方

发表于:2019-01-26 / 阅读(73) / 评论(0) 分类 经济学人综合

China's population中国人口 The most surprising demographic crisis出乎意料的人口危机 A new census raises questions about the future of Chinas one-child policy 新的人口普查结果对中国独生子女政策的未来提出了质疑 DOE

发表于:2019-01-26 / 阅读(119) / 评论(0) 分类 经济学人综合

Wilbur crouched low, with his thin, curly tail toward the rat. 威尔伯蹲低身子,让它那条细细的弯尾巴对着老鼠。 Templeton seized the string, passed it around the end of the pig's tail, and tied two half hitches. 坦普尔顿抓住绳

发表于:2019-01-29 / 阅读(85) / 评论(0) 分类 夏洛的网

Wilbur burst into tears. 威尔伯哇哇大哭。 I don't want to die, he moaned. 我不要死,它呻吟说, I want to stay alive, right here in my comfortable manure pile with all my friends. 我要活,我要活在这舒服的肥料堆上,和我

发表于:2019-01-29 / 阅读(56) / 评论(0) 分类 夏洛的网

Guys, heres another reason to eat your veggies: they might be good for your sperm. Some studies show that male fertility and whats called seminal quality have declined over the last few decades. So researchers from two fertility clinics in Spain loo

发表于:2019-01-30 / 阅读(112) / 评论(0) 分类 60秒科学

According to the Washington Post of September 26, Japan's government has been paying more attention to the nations fertility rate, which influences the country's economic development。 The coastal region of Fukui has Japan's biggest share of dual-in

发表于:2019-02-18 / 阅读(77) / 评论(0) 分类 阅读空间

Egg The star of Easterpainted, dyed, gilded in silver and gold, blown empty and hung on trees--is the egg. Legends abound about this symbol of life. Around the world they are brought to church, given as gifts, hidden for the benefit of children and e

发表于:2019-02-19 / 阅读(80) / 评论(0) 分类 雅思英语

新托福口语的阅读材料不长,但题材广泛,而考生的知识又受限于自己所学的专业,不可能面面俱到。这样,当遇到材料的内容非常陌生时,尽管表面上看没有生词,也难免会出现读不懂的现

发表于:2019-03-13 / 阅读(152) / 评论(0) 分类 托福英语
学英语单词
's-Hertogenbosch
abstract model
advanced communications
aerospace research
angled pull
animadverting
annuity deferred
aucassin
back span
basic management
Bayes classifier
Beaver River
beta-Transducin
bladderwort families
boilaries
Bryoxiphiaceae
buccal cavity (oral cavity)
cable railways
Canin, Mte.
cladding defect
classifying
coat the bottom
cold-shoulderings
complaints department
constant-height surface
construction suspense account
control of boundary layer
customer-relationship
dicyanoethane
dimethylmalonate
Doogie mouse
drag race
drinupyl
dry zirconium metal
dull bit
entrammels
epitopes
family Teredinidae
flux pulsation
folkie
grain nozzle
have influence on
hemi-facial spasm
interconnection line
intermediate disturbance hypothesis
Irina
ironworker
it is domino with
Kaempferol-3-Galactoglucoside
Kostanay
low pitched rale
low-frequency
ludvigson
main flow orifice plate
manual radar-reconnaissance exploitation system
Musculus planus
New Model Army
normative decisiontheory
oeed
over drilling
parotid pneumocele
partial disarmament
Pathfinders.
percimonious
permanently feasible set
philippine cedars
Phillotson
photoconductivities
porous granules
promissive
refrigerated air dryer
retinitis stellata
reverse course
Rhodiola crenulata
robotic manipulator
s shilling
safe operation
scriggly
shooting period
sizing up
soapstoned
star clusters
static Kramer system
statisitic error
straight ended conical package
studio floor
super-huge turbo-generator
tangent chart
the evolution
thymoleptice
tire-pressure
tocofenoxate
topographic sheet
trifluorides
trovador
truck mounted water well drilling rig
ureteric bud
variable audio-frequency radiosonde
viscous-flow
warehouse location
zero-signal
ziomism