音标:[,laisəu'lesiθin] ;
n. [生化] 溶血卵磷脂

A hundred years ago, there are one and a half billion people on earth. Now, over six billion crowd our fragile planet. But even so, there are still places barely touched by humanity. This series will take you to the last wildernesses and show you the

发表于:2018-12-03 / 阅读(74) / 评论(0) 分类 探索与发现2012年

The penguins stay when all other creatures have fled because each guards a treasurea single egg rested on the top of its feet and kept warm beneath the downy bulge of its stomach. There is no food and no water for them. And they will not see the sun

发表于:2018-12-27 / 阅读(77) / 评论(0) 分类 探索与发现2012年

新编英语教程第五册unit07_1_dollys_false_legacy

发表于:2018-12-29 / 阅读(76) / 评论(0) 分类 新编大学英语阅读部分

Sorry,thereisnottexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! 汪培珽分级书单(MP3+绘本) TOP50初级英文绘本

发表于:2019-01-01 / 阅读(120) / 评论(0) 分类 动物街64号 Zoo Lane 第三季

Taliban attacks in Afghanistan rose sharply this year, underscoring the difficulty faced by the Afghan government and coalition forces trying to stamp out the persistent and deadly insurgency. But just how serious a threat does the Taliban pose to t

发表于:2019-01-09 / 阅读(113) / 评论(0) 分类 VOA标准英语2008年(九月)

Sorry,thereisnottexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thankyou! 爱探险的朵拉 BBC儿童动画-小猪威比

发表于:2019-01-18 / 阅读(109) / 评论(0) 分类 英语原声睡前故事

They are constantly on the move. New-born calves have to be up and running the day they are born. But the vast herds do not travel alone. Wolves. Packs of them, eight to ten strong, shadow the migration. And they are hungry. Its the newly born calves

发表于:2019-01-23 / 阅读(85) / 评论(0) 分类 探索与发现2012年

But they are hungry and eager to reach their mother whos delayed feeding them on this special day. Now she lures them with the promise of milk, the only food the cubs have known since they were born, deaf and blind beneath the snow some two months ag

发表于:2019-01-23 / 阅读(90) / 评论(0) 分类 探索与发现2012年

Day 10. And the mother has let her cubs a mile from the den. Its time to put them to the test. Theyve grown enormously in confidence, but they dont have their mothers sense of urgency. At last it seems that they are ready for their journey. And they

发表于:2019-01-23 / 阅读(77) / 评论(0) 分类 探索与发现2012年

Midsummer on the tundra and the sun does not set. At these altitudes, the suns rays are glancing and not enough of their energy reaches the ground to enable trees to grow. Youll need to travel five hundred miles south from here before that is possibl

发表于:2019-01-23 / 阅读(79) / 评论(0) 分类 探索与发现2012年

As we travel south, so the suns influence grows stronger. And at 50 degrees of latitude, a radical transformation begins. Summers here are long enough for broadleaf trees to replace conifers. Broadleaves are easier to eat and digest, so now animals c

发表于:2019-01-23 / 阅读(97) / 评论(0) 分类 探索与发现2012年

The advance of the seasons brings constant change. As the suns influence diminishes in the north, so the deciduous forests of America begin to shut down, losing their leaves in preparation for the dark, cold months ahead. One season hands over to ano

发表于:2019-01-23 / 阅读(73) / 评论(0) 分类 探索与发现2012年

The character of the forest changes as we descend, becoming ever darker and damper, favoring different kinds of animals and plants. Less than two percent of the sunlight reaches the floor. But even here there is extraordinary variety. In the Great Is

发表于:2019-01-23 / 阅读(67) / 评论(0) 分类 探索与发现2012年

The sun beating down on tropical waters powers the weather systems of the globe. Moisture evaporates from the warming ocean and rises to create great storms. The winds generated out at sea sweep inland across the continents. As they travel across the

发表于:2019-01-23 / 阅读(69) / 评论(0) 分类 探索与发现2012年

Deer are frequent casulties of the harsh winter. And these leopards are not above scavenging from a corpse. African leopards could never survive here. But the Russian cats have thick fur to shied them from the cold. There are only 40 Amur leopards le

发表于:2019-01-23 / 阅读(102) / 评论(0) 分类 探索与发现2012年

Their secret is teamwork. Impala are their favourite prey. They start to hunt and the pack splits up. An aerial viewpoint gives a new insight into their strategy. As the dogs approach their prey, they peel off to take up separate positions around the

发表于:2019-01-23 / 阅读(64) / 评论(0) 分类 探索与发现2012年

The dogs know their prey must come out or drown. Now its a waiting game. The rest of the pack are calling. Theyve made a kill in the forest and this is an invitation to join in the meal. The impala is in luck. A pack this size kills once a day and ev

发表于:2019-01-23 / 阅读(75) / 评论(0) 分类 探索与发现2012年

All across southern Africa, all animals are journeying for the same reason. Buffalo join the great track. Nowhere else on Earth are so many animals on the move for the same urgent purpose. They are all heading for the swamps of the Okavango, a vast i

发表于:2019-01-23 / 阅读(77) / 评论(0) 分类 探索与发现2012年

China's IPO market experienced a slump in 2012 as concerns continued over the country's slowing economy. The Shenzhen and Shanghai stock exchanges registered one hundred and fifty new listings, together raising just over one hundred billion yuan; aro

发表于:2019-02-21 / 阅读(88) / 评论(0) 分类 英闻天下

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发表于:2019-02-27 / 阅读(162) / 评论(0) 分类 粉红猪小妹第二季
学英语单词
3-methylenecyclohexene
A check
accession to the wto
acicular
adversarial relationship
anti-hydrogen embrittlement superalloy
arcuate diaphragmatic ligament
Azcapotzalco
beat one's breast
bedsheets
believe in sb
Bestyakh
boumediene
bounding surface
bright-coloureds
broadcast transmission
calpulli
capreoluss capreoluss
car port
cavitas orbitalis
cheiroplatea mitoi
Clostridium innominatum
condenser foil
Cremanthodium sino-oblongatum
cyberfriendship
deformation-retracted
elastic maximum issue limit system
ellipsometry
epitetracyclin
erythromelia
fcra
ferg
Ficus glomerata
figured
first steward
forest nursery
form of cartels
founding members
genecode
gushi
hermetically sealed cable
housewifeliness
hypogeally
Hypolepidaceae
in coat and skirt
Indian spring low water
infracristal ventricular septal defect
keltsy
keyboard service routine
language-specifics
large module gear
lateral horn
linear transmission channel
lloyd's law reports
majorana representation
memoriter teaching
Mental Masturbation
microbiological damage
Monaghan.
multiple frame established
n-heptylacetylene
neutron transport theory
non monetary gold
norientation
nuclear radiation spectroscopy
nurseryfish
object link and embedding
optic chiasm
Peltophorum tonkinense
phenylpiperazine
phonotypical
photo-actinic
pitch-fir
pomoerium
propenol
purpura cryoglobulinemia
Puy lentils
quercus subers
recharging
redeify
rhinoscopy
Rolando's substance
sacrificio
scyllarides squammosus
siphonic w.c.pan
space distortion
squander-bug
subcutaneous fat necrosis of new-born
supertensio
swedia
tabulator mechanism
tangential sensitivity on look-through
test run
Thunder Knoll
trans-border
two-boxes
vebonol
walk - through test
water pump seal spring
wet rags
wlogs
yellowcard