音标:[,tetrәhai'drɔksileitid] ;
四羟基化的

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? On June 4th we told you about iron snowflakes on Mercury. Today we have some radical news about the atmosphere of Venus. Literally, a radical is a molecule that reacts e

发表于:2018-12-24 / 阅读(79) / 评论(0) 分类 Scientific American(六)月

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(120) / 评论(0) 分类 Scientific American(一)月

Helen: Hello, this is Real English from BBC Learning English, Im Helen Zo: Hello, 我是刘佳。欢迎收听我们今天的地道英语。 Helen: In Real English, we look at words and phrases that you might not find in your dictionary. Zo : 英语和中文一样,有很多的俗

发表于:2019-01-02 / 阅读(95) / 评论(0) 分类 地道英语在线听

Robert Burns(17591796) O my luve is like a red, red rose, That's newly sprung in June; O my luve is like the melodie That's sweetly played in tune. As fair thou art, my bonie lass, So deep in luve am I; And I will luve thee still, my dear, Till a' t

发表于:2019-01-02 / 阅读(122) / 评论(0) 分类 英语诗歌

Erythromycin,红霉素 Azithromycin,阿奇霉素 Clarithromycin,克拉霉素 Fluoroquinolones and their derivatives (e.g. levofloxacin),多西环素(如:脱氧土霉素) Tetracyclines (e.g

发表于:2019-01-03 / 阅读(91) / 评论(0) 分类 医务英语

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(105) / 评论(0) 分类 医务英语

分集介绍:导数,商数,正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(333) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

A: Are you new in town? B: Yes, I did just move in. A: How do you like it here so far? B: I think its great. A: Where did you move from? B: I was living in El Salvador. A: Why did you decide to move? B: I figured I could have a better life here. A: I

发表于:2019-01-07 / 阅读(97) / 评论(0) 分类 英语情景对话-邻居

Dan: This is 6 Minute English from BBC Learning English. I'm Dan Walker Smithand today I'm joined by Alice. Hello Alice! Alice: Hi Dan. Dan: Alice, you've got some news about a media blackout in an English town, right? Alice: That's right; a media bl

发表于:2019-01-07 / 阅读(84) / 评论(0) 分类 六分钟英语

Ed Sheeran,英国20岁的创作新人歌手,这首The A Team本周打入英国单曲榜第三位。Ed Sheeran的声音非常清澈好听,此前Westlife成员Mark Feehily还在Tweet上邀请Ed为westlife写歌,Ed的回复则是I might actually

发表于:2019-01-10 / 阅读(86) / 评论(0) 分类 天籁音乐

A: Can you tell me where it hurts? B: I am so glad they called you. It feels like something is really wrong with my stomach! A: Does it hurt when I push here? B: Its mostly on my right side. Right here! A: Have you been feeling this way for awhile? B

发表于:2019-01-15 / 阅读(124) / 评论(0) 分类 英语情景对话-健康

A: I really need you to do something for me. B: Whats the problem? A: I cant get into my apartment. B: Howd you manage that? A: I dont know. B: Do you know where your key is? A: Its inside my apartment. B: I have a spare key. A: Will you let me use i

发表于:2019-01-20 / 阅读(91) / 评论(0) 分类 地道英语对话-租房

By Victoria Cavaliere New York 24 October 2007 New York's Metropolitan Museum of Art has opened a newly renovated, state-of-the-art education center that will allow students, scholars and the general public to study the museum's world-renown collecti

发表于:2019-01-31 / 阅读(95) / 评论(0) 分类 2007年VOA常速英语(十月)

听歌学英语:Edleweiss 音乐之声插曲 edleweiss 雪绒花(小提琴版)这样一首温馨的歌曲同样出自于美国电影《音乐之声》。它也是我对小学时音乐课最美好的回忆。 [00:02.50]EnglishExpress [00:05.95]轻松

发表于:2019-02-07 / 阅读(162) / 评论(0) 分类 听歌学英语

WASHINGTON, Dec. 12 (Xinhua) -- After its final policy meeting of this year, the U.S. Federal Reserve on Wednesday announced to continue pumping money into the economy by buying assets and hold its short-term rate near zero until the unemployment rat

发表于:2019-02-09 / 阅读(114) / 评论(0) 分类 英语新闻

LONDON The United States has won the mens Olympic basketball gold medal at the London Games. The victory in the final over Spain did not come easy. The final on the scoreboard read USA 107, Spain 100, a seven-point victory in a game that was tightly

发表于:2019-02-09 / 阅读(219) / 评论(0) 分类 英语新闻

Mind control over the material world has long been the stuff of science fiction. Now, thanks to a chip implanted in the brain, one paralyzed American sportsman is learning how to reach out and touch once again with the help of a robotic arm powered s

发表于:2019-02-14 / 阅读(97) / 评论(0) 分类 世界各地新闻集锦

Conradin was ten years old, and the doctor had pronounced his professional opinion that the boy would not live another five years. The doctor was silky and effete, and counted for little, but his opinion was endorsed by Mrs. de Ropp, who counted for

发表于:2019-02-16 / 阅读(190) / 评论(0) 分类 英文短篇小说

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(126) / 评论(0) 分类 万物简史

本文为大家准备了GRE词根ed词汇整理,便于考生GRE考试备考。 ed = eat 吃 441. edible〔 ed 吃,-ible 形容词后缀,可的 〕可以吃的,食用的442. edibility〔 ed 吃,-ibility 名词后缀,可性 〕可食性443.

发表于:2019-02-25 / 阅读(88) / 评论(0) 分类 GRE英语
学英语单词
ahistorical bias
allomonodiploid
appraises
asbestos pad
authorization of unit trust
axis of lens
b-te (broadband terminal eauipment)
ban-the-bombers
beam-rolling mill
Borda's mouthpiece
bridle line
Cacimba
case fraction
certificate of quantity
cherublike
chromosome replication
cigarette maker-packer link
class life
cobalt(ii) fluosilicate
combinational switching system
continuous flow dryer
Costa prima
critical period of expansion
crosslinking density
datum points
dayton
deflection space
disregard for
do-do-do
eicosapentaenoic
environment radiation surveillance
eustatic cycle
evodin
FDLP
floree
freedest
fruit can
gastube boiler
glacial-fluvial deposit
head product
help program
high-gain aerial
hypergigantosoma
hysteromorphous deposit
indigo paper
indium-resonance energy
infratemporalis
investigative journalist
islet transplantation
key lime
keyed joint
larssons
le donon (donon)
mancalas
maximity
Md5sum
microwave stripline
milling process
modal unbalance tolerance
multiple repeat stress
nakhon
net irradiance
odd-job
on screen image manipulation
one-metre scale
ortho-scope
p-benzenediol
peutinger
photovoltaic material
pibgorns
pneumatic water supply system
Poraj
pressure bomb
pulse repetition
puppy mill
queenhoods
rack drum
re-accredited
re-treading
SANTA (systematic analog network testing approach)
sclerotomies
sh? tiao hui hu tui
sickle cell-thalassemia disease
spacing boss(of outer shell) (
stochastic differential equation
Stuhmer's disease
subeditors
supercentral fissure
system release
T bandage
teres ligament of liver
thermos
thread compound
toyish
trough velocity
two-fold symmetry
unpopularise
unwagged
urban ecoeconomics
vaporous water
vietnamese-americans
x-ray shadow microscope