一氟三氧化铼(VII)

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Beauty is only skin deep. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shiel

发表于:2018-12-02 / 阅读(115) / 评论(0) 分类 Scientific American(十二)月

The Weekend - Road Trip A: So, are we all ready to go? B: Yup, I think so. The cars packed; we have munchies and music, and the maps in the car. A: Did you get the camera? B: Got it! Did you fill up the tank? A: Yup, its all set. B: Youre sure were n

发表于:2018-12-02 / 阅读(109) / 评论(0) 分类 纯正地道美语

Sorry,there is not text temporarily, Please help tingroom to look for it! 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 ! Thank you !

发表于:2018-12-04 / 阅读(161) / 评论(0) 分类 冀教版高中英语必修二

Mr. President, Mr. Speaker, Members of the Congress of the United States: The gravity of the situation which confronts the world today necessitates my appearance before a joint session of the Congress. The foreign policy and the national security of

发表于:2018-12-04 / 阅读(336) / 评论(0) 分类 名人演讲

07 牙病的预防与治疗 DATE=2-27-01 TITLE=SCIENCE IN THE NEWS #2113 - (1)Dental Health BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the

发表于:2018-12-07 / 阅读(84) / 评论(0) 分类 科技之光

Is it necessary to have cavities in the baby teeth repaired? 乳牙蛀成了洞还有必要补上吗? If the baby teeth are going to fall out, I don't think that it matters if they become decayed. 如果乳牙是要脱落的,我想蛀了也没有关

发表于:2018-12-27 / 阅读(114) / 评论(0) 分类 口腔临床英语对话

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson (Start at 1'02

发表于:2019-01-02 / 阅读(118) / 评论(0) 分类 科技之光

You're ready, I'm ready, you'll be my everything 你准备好了我也是你会是我的一切 I wanna give it to you 我想为你倾其所有 So steady, so heavy, now this is everything 我们的爱情稳固又热烈这就是一切 Without you, I do

发表于:2019-01-03 / 阅读(65) / 评论(0) 分类 听歌学英语

By Al Pessin Pentagon 19 November 2007 The U.S. Defense Department says a series of ideas for a new effort to try to get Pakistani tribal leaders to cooperate in the fight against terrorists is just a staff document and is far from any senior level c

发表于:2019-01-04 / 阅读(95) / 评论(0) 分类 VOA常速英语2007年(十一月)

A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti

发表于:2019-01-14 / 阅读(92) / 评论(0) 分类 VOA标准英语2010年(十)月

Ah yes.The ol' fluoride rinse at the dentist. Not pleasant. But hey, good for your teeth, right? 没错,这是牙医洗牙用的含氟漱口水。确实够闹心的。但毕竟对你的牙齿有益不是吗? Well now materials scientists have been

发表于:2019-01-20 / 阅读(83) / 评论(0) 分类 2018年科学美国人1月

Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the

发表于:2019-01-28 / 阅读(84) / 评论(0) 分类 英语博客 A cup of English

SCIENCE IN THE NEWS - November 26, 2002: Dental Health By Nancy Steinbach VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abo

发表于:2019-01-30 / 阅读(101) / 评论(0) 分类 科技之光

New Yorkers Take Transit Woes in Stride NEW YORK Life regained some semblance of normalcy on Thursday for New Yorkers affected by superstorm Sandy, as public transportation started to come online and millions of people returned to work. But for those

发表于:2019-01-31 / 阅读(104) / 评论(0) 分类 英语新闻

今天我们要学的词是 fluoride. Fluoride 氟化物。The U.S. government is lowering the recommended amount of fluoride added to drinking water for the first time in more than 50 years. 美国政府50多年来首次降低饮用水建议添加的氟

发表于:2019-02-02 / 阅读(87) / 评论(0) 分类 英语单词荟萃

VIENNA, July 6 (Xinhua) -- The Austrian Olympic Committee (OOC) has nominated 69 athletes to take part in the 2012 London Summer Olympic Games, the APA reported on Friday. This will make it the smallest team since the 1976 Montreal Games where 64 Aus

发表于:2019-02-02 / 阅读(138) / 评论(0) 分类 英语新闻

VIENNA, May 9 (Xinhua) -- The Austrian Olympic Committee (OeOC) nominated a further 13 athletes for its 2012 London Olympic Games team on Wednesday, bringing the total to 37 athletes across 12 sporting disciplines. OeOC President Karl Stoss said he p

发表于:2019-02-02 / 阅读(160) / 评论(0) 分类 英语新闻

By Melinda Smith Washington 14 May 2007 Top executives of the company that makes a powerful painkiller called Oxycontin admitted this week they lied about the drug's addictive qualities in order to boost sales. As VOA's Melinda Smith reports, worldwi

发表于:2019-02-03 / 阅读(137) / 评论(0) 分类 2007年VOA标准英语(五月)

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(107) / 评论(0) 分类 英语博客 A cup of English

单词的记忆将不在是一件困难和痛苦的事情, 你会发现你的单词量在一段时间内暴涨,一种强烈的满足感油然而生,另外, 背单词的时候不要只见树木不见森林, 比如说, 你知道了词根liter表示文字

发表于:2019-02-19 / 阅读(70) / 评论(0) 分类 大学四六级阅读
学英语单词
acyclic carrier function
alarm and setback
Angelica fargesii
annual load variation
archaeals
Baa, Baa, Black Sheep
bar port
Bernardines
bitterballen
Bocsig
Britishly
bulnesia sarmientis
buyer's price
Calathodes oxycarpa
campus crime
cascade particle
caviar
cavity frequency meter
ciro
clapped up
connecting rod small end bush
cotton bagging
current mirror
cyclosporiasis
Dayao
Dermatophilaceae
Distoma
dodgiest
draconis sanguis
eleven-minute
ELTs
Esch-sur-Sûre
estr-
Fossa triangularis
gender-related
goat rue
grant of personal property
Hemodialyzate
hermaphroditism with excess
hinged tray
Idanha
interferencecomparator
intraparenchymal
invariant element
invert selection
irreducible tensoroperator
lay-up period
learned people
light-quantum
limited life
Lloyd's scantling numeral
long in the tooth
lybkes
Lyellia
magnetic epoch
mawk
mirror magnetic field
Montbenoît
myorelaxants
name-tapes
narang
nepe
non-narrative
nucleic acid cycle
oblique projection-drawing
oligoaniline
order convergence
Oshino
partitive color mixing
piezoremanent magnetism
point operation
preanthesis
project application
Prontor
prototyping operating system
pulmonary fungal infection
recrate
reference diode
rental agreement
salt fingering
sibling fucker
slight sea
social age
soldering salt
solid nutrient medium
spaced learning
subgrade erosion
super
superego-indifference curve
tail general
tax on the above-norm bonus
the go
transition
trenails
true-false test
umbilicanimism
view of scene
vlei rats
wavy disk colter
wet bag
wet dock entrance lock
whizz through