音标:[əʊ'lekrənɒn] ;
n. 【解】鹰嘴( 指肘部的骨性隆起)

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(121) / 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(123) / 评论(0) 分类 探索与发现2012年

Crufts winner 2006. Picture courtesy of the Kennel Club of Great Britain Fireworks, music and theatre have been some of the ways in which the Chinese community in Britain has been celebrating the start of the Year of the Dog it has been quite a part

发表于:2019-01-02 / 阅读(172) / 评论(0) 分类 Take Away English

By Steve Herman Tokyo 18 May 2006 U.N. Secretary-General Kofi Annan in Tokyo U.N. Secretary-General Kofi Annan has expressed frustration at the lack of progress in resolving the Iranian and North Kore

发表于:2019-01-04 / 阅读(184) / 评论(0) 分类 2006年VOA标准英语(五月)

By Selah Hennessy Dakar 07 June 2007 Former governors in Nigeria suspected of corruption have showed up in Abuja for a meeting with an anti-corruption body, but several others are on the run. The government of new President Umaru Yar'Adua has vowed t

发表于:2019-01-16 / 阅读(144) / 评论(0) 分类 2007年VOA标准英语(六月)

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(142) / 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(141) / 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(129) / 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(125) / 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(140) / 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(124) / 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(114) / 评论(0) 分类 探索与发现2012年

The strike of a great white shark lasts a mere second. Slowing it down forty times reveals the technique and immense strength of this massive predator. If surprise fails, there will be a chase. The shark is faster on a straight course, but it cant tu

发表于:2019-01-23 / 阅读(234) / 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(127) / 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(150) / 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(122) / 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(134) / 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(138) / 评论(0) 分类 探索与发现2012年

At the peak of the dry season in the Kalahari, water arrives in the Okavango. It fell as rain a thousand miles away in the highlands of Angola and has taken nearly five months to reach here. The water drives out insects from the parched ground which

发表于:2019-01-23 / 阅读(118) / 评论(0) 分类 探索与发现2012年

By Alan Silverman Hollywood 04 February 2007 Oscar-winner Diane Keaton plays the meddling mother to pop music star Mandy Moore in a relationship comedy about family, love and happiness. It arrives at American theaters timed to pick up the audience th

发表于:2019-01-31 / 阅读(140) / 评论(0) 分类 2007年VOA标准英语(二月)
学英语单词
2-amino-4-hydroxy-6-hydroxymethyldihydropteridine
ability trait
adultcentrist
air condit
Alvodine
AMD VISION
annuals
armature reactance factor
Artiflam
ash emulsion
atp (adenosine triphosphate)
Atrypidina
behave properly
buccal hiatus
building-block layout system
capped knee hock
Carpinus rankanensis
certificate of qulity
chaise-marine
Chamberlain, Owen
Cheshunt
confusion matrix
coumalic acid
Cuglieri
danshen cream
did the deed
direct beam
Doubtful Sd.
drydock
eczema craquele'
electrometrical
encage
enriched
etching technique
filiform papilla
fine turning lathe
gas pliers
Glamorgan
GTH
guignardia castanopsidis
Gulo gulo
historical approach
identifier expected
ill-willed
indotricarbocyanine
ingebretsen
ipecac and opium powder
kept my head above water
lamellar fusion
Leyden's duct
mail sorter
making cost control work
Matthiola incana R. Br.
mesh porosity
Metapetrocosmea
mid value of class
mitropifex amanda
monday-night
multi-roll bar-straightening machine
multivalued decision
negatyfe
nerve nuclus
nuclear photo-electric effect
nucleidic mass
Nucleus striae terminalis
nuulam
Orbiculoidea
power driven capstan
precision investment casting
predation
quakey
raunging
refreshment saloon
rhetorical figures
run-time value
Sablé-sur-Sarthe
Salmonella meleagridis
section modulus of torsion
semi fire proof
semiconductor material science
sheets hot from the press
single silk-covered enameled wire
slave motor
spinasaponin
steel-wool
styracitol
swithed
teology
thermothiocin
thiazocines
top line
tri
two-tenths
unconditional branch operator
universal timer
vanadium carbide
visceral epilepsy
wattins
weft knitting
y piece
zirconate ceramics