(棘皮动物)腕

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(230) / 评论(0) 分类 探索与发现2012年

Ladies, how many times a day do you fix your bra straps, or have you ever wished you could get a little more cleavage? Well, odds are you're wearing a bra that doesn't fit right. We sent a few brave w

发表于:2018-12-11 / 阅读(310) / 评论(0) 分类 万花筒2006年

发表于:2018-12-13 / 阅读(351) / 评论(0) 分类 Wee Sing Around the World

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(232) / 评论(0) 分类 探索与发现2012年

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(268) / 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(278) / 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(256) / 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(241) / 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(271) / 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(250) / 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(228) / 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(259) / 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(291) / 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(269) / 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(270) / 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(285) / 评论(0) 分类 探索与发现2012年

MILAN, April 9 (Xinhua) -- Inter Milan snapped their two-loss losing streak on Saturday when they beat Chievo 2-0 at home in Serie A. It was the third game Inter played in a week at home where the first two saw them lost to AC Milian 3-0 in Serie A a

发表于:2019-02-03 / 阅读(356) / 评论(0) 分类 英语新闻

By Tendai Maphosa London 22 October 2007 Former Mozambique President Joachim Chissano is the first recipient of the Mo Ibrahim Prize for Achievement in African leadership. Former U.N. Secretary General Kofi Annan made the announcement in London. Tend

发表于:2019-02-06 / 阅读(360) / 评论(0) 分类 2007年VOA常速英语(十月)

Chiki Chiki from:Starclub Dr. Alban Chiki-chiki on the mind Chiki-chiki all the time If you want it you got it I'm burning inside Chiki-chiki love your style Chiki-chiki so alive Let's go crazy, amaze me Get into the vibe (vibe vibe vibe vibe vibe...

发表于:2019-02-07 / 阅读(314) / 评论(0) 分类 好听的英文歌曲

Chiki-chiki on the mind Chiki-chiki all the time If you want it you got it I'm burning inside Chiki-chiki love your style Chiki-chiki so alive Let's go crazy, amaze me Get into the vibe (vibe vibe vibe vibe vibe.....) Chiki Chiki me say hello You're

发表于:2019-03-02 / 阅读(337) / 评论(0) 分类 好听的英文歌曲
学英语单词
ASAT
ascending pyelography
auricular notch
Barbacan.
barriman
bimetallic thermometer element
blast furnace slag
boyos
Brzezinka
chlorophyl B
cholesterol pericarditis
concertmeisters
coupler and draft gear
curiosity
dashamirs
deep water harbour
deoxycytidine-5'-diphosphate
dikaryocyte
dimethylaminos
discontact-type wave probe
Dobrogea
dysbetalipoproteinemias
euanthic
exhibitive
fissidens dubius
fissured flow
fulfillable
geronto
gorde
harmful cargo
Haud Plateau
Heliozoia
hood-type annealing furnace
ileocecal tumor
illmitzs
inarticulated
Indian Cabins
inertial mode
infacilitate
information profitability
irmos
kick sampling
lateritic soil
Lavalleja, Dep.de
leda
localized slip
maximum loading gauge
melanees
methyl hesperidine
Microdipodops
mini-electrocentrifug
mold loft
Monera
mount gum
network of testis
noncached
operations manual
opposite number
ostearthritis
papulovesicular pityriasis
parachironomus sauteri
particles of aggregates
printing auxiliary
public scrutiny
pusherman
ratio image
recalcitrations
redundancy logic
Relying on government subsidy
reparative dentin
s-wave pairing
sargocentron diadema
social secretaries
soster
spirulas
SST (siting source term)
steam pipe
steel mould
stringent control
task's message receiver routine
Te
television stars
the realm of possibility
theelin
time division CDMA
tragedia
transformer casing
transmission utilization ratio
traps case
trimethyldiphenylpropylamine
true binary notation
two banks opposing spray pattern
ultra-violet microscopy
Uromitexan
uterovaginal primordium
variable-drop device
vater
veal crates
vindicatress
volitates
warmest
whupped