音标:[drai ˈsə:fis ˈreiʃiəu ɔv sɔil] ;
土壤干表面比率

EXPLORATIONS - Mars Exploration, Part 2 By Paul Thompson Broadcast: Wednesday, February 04, 2004 (THEME) VOICE ONE: This is Shirley Griffith. VOICE TWO: An artists picture of a Mars Rover vehicle. And

发表于:2018-12-01 / 阅读(179) / 评论(0) 分类 Explorations

Water on the Moon Studies in the journal Science report that instruments on three different spacecraft have found evidence for widespread trace amounts of water on the moon. Karen Hopkin reports For all you space buffs who like to keep track of wher

发表于:2018-12-07 / 阅读(139) / 评论(0) 分类 60秒科学

Ezekiel connected dem dry bones Ezekiel connected dem dry bones Ezekiel connected dem dry bones Oh, hear the word of the Lord The foot bone's connected to the ankle bone The ankle bone's connected to

发表于:2018-12-11 / 阅读(155) / 评论(0) 分类 VOA标准英语2014年(三月)

For all you space buffs who like to keep track of where the water is, it looks like you can add our very own moon to your list. Because according to a trio of papers appearing in the journal Science, the lunar surface is wetter than we realized. Fort

发表于:2018-12-24 / 阅读(111) / 评论(0) 分类 Scientific American(九)月

Why does Florida have so many springs? Florida sits on a layer of porous limestone which acts as an underground reservoir or aquifer. This aquifer can absorb huge amounts of water. Where the pressure is great enough, springs bubble up, spewing up bil

发表于:2018-12-26 / 阅读(121) / 评论(0) 分类 自然百科2009年

How Rocks Appear In Your Garden I wonder how many of us went out this past spring to get our gardens ready for planting, smug in the thought that last year we got rid of all the rocks. Theres that nice big mound of them in the corner of the garden wh

发表于:2018-12-31 / 阅读(95) / 评论(0) 分类 英语听力文摘 English Digest

图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t

发表于:2019-01-02 / 阅读(243) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt

发表于:2019-01-02 / 阅读(281) / 评论(0) 分类 数学英语

Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t

发表于:2019-01-04 / 阅读(155) / 评论(0) 分类 VOA2004(上)--各类新闻

我们再来给大家介绍两个以dry这个字为主的习惯用语。第一个是:High and dry. High就是高,dry 就是干。要是一个人处于high and dry的局面,那他就是面临难以

发表于:2019-01-07 / 阅读(239) / 评论(0) 分类 美国习惯用语

Dry your eyes BABY别哭~ 演唱者:3rd Storee 英文歌词 Girl there's something that's telling me That you're in need of company And you need it now So I'm willing to comfort you For all, all the pain that you're going through So baby don't... 3

发表于:2019-01-10 / 阅读(196) / 评论(0) 分类 英语说唱歌曲

Recently at a site only two kilomtres to the southeast, archaeologists have unearthed the first traces of people living in the same period. It's a find that may finally answer why stonehenges located where it is. Here is the section through one of th

发表于:2019-01-23 / 阅读(126) / 评论(0) 分类 探索与发现2015年

今天我们要学的词是dry up。 Dry up, 意思是耗尽,用光。今年年初开始的阿拉伯革命目前的焦点集中在叙利亚,随着西方国家的制裁,As cash starts to dry up, more Syrians see that the current regime is not su

发表于:2019-01-30 / 阅读(149) / 评论(0) 分类 英语单词荟萃

在这次节目里,我们要给大家讲两个以dry这个字为主的习惯用语。Dry就是:干,也就是干和湿的干。我们首先要讲的一个习惯用语是:Dry run. Dry是干,ru

发表于:2019-01-30 / 阅读(228) / 评论(0) 分类 美国习惯用语

DEVELOPMENT REPORT - Need to Dig a Well? Start HereBy Gary Garriott Broadcast: Monday, May 15, 2006 This is Shep O'Neal with the VOA Special English Development Report. There are several low-cost ways

发表于:2019-01-30 / 阅读(139) / 评论(0) 分类 2006年慢速英语(五)月

BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up

发表于:2019-02-04 / 阅读(177) / 评论(0) 分类 英语新闻

China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem

发表于:2019-02-14 / 阅读(165) / 评论(0) 分类 英闻天下

We are rediscovering the enigmas(谜团) of the Moon and they're really in our own backyard Dr Jim Garvin, Nasa Goddard Space Flight Center Moon water has world in a twitter A surprising amount of water has been found to exist in the Moon's soil. Data

发表于:2019-02-18 / 阅读(116) / 评论(0) 分类 英语新闻

Till the rivers all run dry Till the sun falls from the sky Till life on earth is through I'll be needing you I know sometimes you may wonder From little things I say and do But there's no need for you to wonder If I need you cause I'll need you Till

发表于:2019-02-20 / 阅读(153) / 评论(0) 分类 美国乡村音乐

Plants in the Deserts Some cacti, like the saguaro, grow to tree size, but true trees need more moisture than most desert environments can supply, so they are scarce on deserts. Close to streambeds, cottonwoods can sometimes be found. Though these st

发表于:2019-02-25 / 阅读(102) / 评论(0) 分类 双语有声阅读
学英语单词
accurate expression
Actinidia stellatopilosa
actinon
acyls
Addar, C.
adpeople
air-conditioning turbocompressor
antipyics
bill payable 15 days after date
Biscarosse
canonesses
cetanol
chemical scales
Commelinaceae
compiler designer
Convallagenin
counter-cinemas
crude mortality rate
density of passenger traffic
diallylbarbitone
dimethyl ester
double - headed arrow
Douentza
epidemic jaundice
equilibrium diagram
erudition
foreign body of paranasal sinus
fracture direction
freakish weather
genitoperineal raphe
goods insurance
group switch
guzman
Hallouf
heat-pipe heat exchanger
heavily travelled road
hedonisms
hybrid complex
hylobate
icteria virenss
immediate principle
isobutyl phenyl ketone
j-axis
juni
kendall rank correlations
lateral distortion
latter-day
lisle thread
little-league team
looping compensator
loud-break switch
Marimari, R.
Massamba
master of one's fate
mechanical bandspread
moneylender
monotubes
multiorbital
music chart
nethack
night-ravens
ore coal carrier
overgeneralise
overpaid amount
panoramicas
papulonodule
phonotype
physical exercise therapy
plate measuring machine
plushily
pneumatic dispatch
polished barrel rod
port tackle
priority in the debts
procapitalists
prolepsis
proventricular valve
quachas
radar echoes
ratio of crushing
reflectives
restructures
ringworm of the nails
Robert Bartlett
rules of thumb in forcasing of fog
sammler
sematophores
sfs
skin tumors
skip straight
sports administration
strain gauge acceleration transducer
strike a bargain with someone
study circle
superconducting weak link
tearss
tegestologists
timorsome
translaryngeal
Tyuntyugur
Unsterilized Foreign Exchange Intervention
ventral set