[机] 氟化铜

Key Words [00:00.78]关键词 [00:01.57]The Most Common Expressions [00:02.82]最常用表达法 [00:04.08]Incredible!It's said that someone has encountered a dinosaur in a primeval forest. [00:12.88]真难以置信!据说有人在原始森林里见到

发表于:2018-11-28 / 阅读(148) / 评论(0) 分类 零距离李阳疯狂英语口语

INTRODUCTION TO ACT I Today on TUNING IN THE U.S.A., we are in the Stewart home. Ellen is playing the piano when Philip enters the room. He has found an old horn in an upstairs closet. It was a wedding present many years ago. Tomorrow is the annivers

发表于:2018-11-30 / 阅读(193) / 评论(0) 分类 欢乐美语

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

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(86) / 评论(0) 分类 科技之光

Prisma App Makes Art Out of Photos Pokmon GO is the most popular app in the world right now. But another new app is also getting a lot of attention. And its free. Prisma lets users add filters to photos to interesting, beautiful and strange effect. T

发表于:2018-12-08 / 阅读(86) / 评论(0) 分类 2016年VOA慢速英语(七)月

Outdoor of activities A picnic in Spring It is warm. We will picnic in mountain of Yangming. There are many birds chipping around in Spring. It's really enjoyable to lie on the grass and appreciate the beauty of nature.

发表于:2018-12-12 / 阅读(122) / 评论(0) 分类 学术英语视频-教育

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(115) / 评论(0) 分类 口腔临床英语对话

[00:00.00]After several nights,Nian finally ran back [00:04.14]into the mountains and was never seen again. [00:07.70]That winter,the people celebrated [00:10.06]with special food,dancing and singing. [00:14.04]That is why the Chinese Spring Festival

发表于:2018-12-29 / 阅读(94) / 评论(0) 分类 外研社新标准初中英语八年级

The itsy bitsy spider climed up the water spout. Down came the rain, and washed the spider out. Up came the sun, and dried up all the rain, And the itsy bitsy spider went up the spout again.

发表于:2019-01-09 / 阅读(304) / 评论(0) 分类 鹅妈妈童谣

Springtime in D.C. From VOA Learning English, welcome to THIS IS AMERICA. Im Kelly Jean Kelly. And Im Bob Doughty. It is here at last: the Washington D.C. spring, when Americas capital bursts into color. We can ride a bus, a bicycle, a Segway, a hors

发表于:2019-01-12 / 阅读(64) / 评论(0) 分类 2013年VOA慢速英语(五)月

By Peter Fedynsky Washington, D.C. 19 February 2007 watch Appropriations report On the same day that the U.S. House expressed its disapproval of sending more troops to Iraq, the White House asked lawmakers to approve additional money for Iraq's econ

发表于:2019-01-12 / 阅读(152) / 评论(0) 分类 2007年VOA标准英语(二月)

Oum Sok began working as a cyclo driver when he was 18. He says the city has become very expensive over the years, making it much harder to earn a living. New York has its yellow cab. London has its red bus. But Phnom Penh has its cyclo - a three-whe

发表于:2019-01-13 / 阅读(127) / 评论(0) 分类 VOA标准英语2010年(六)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(95) / 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(84) / 评论(0) 分类 2018年科学美国人1月

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(102) / 评论(0) 分类 科技之光

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(88) / 评论(0) 分类 英语单词荟萃

South Africa's former police chief and ex-president of Interpol Jackie Selebi looks on during a hearing at the High Court of Johannesburg, on 3 Aug 2010 The former head of South Africa's national police force and former president of Interpol has been

发表于:2019-02-06 / 阅读(167) / 评论(0) 分类 VOA标准英语2010年(八)月

Chinese New Year starts with the New Moon(新月)on the first day of the new year and ends on the full moon(满月)15 days later. The 15th day of the new year is called the Lantern Festival(元宵节), which is celebrated at night with la

发表于:2019-02-07 / 阅读(121) / 评论(0) 分类 阅读空间

Spring cleaning 大扫除 Kate: Hello, Im Kate Colin and this is 6 minute English and today I'm joined as usual by Jackie Dalton. Well now we're well into the month of May and spring is well under way so today were talking about the modern attitude to

发表于:2019-02-07 / 阅读(362) / 评论(0) 分类 六分钟英语

饶舌:Brokencyde - Get Crunk 相关介绍 :你听过Crunk加 Screamo的么?强力推荐,强烈的hipa节奏+上scream.强的没话说,第2首Bree!听着像猪叫...哈哈fans别骂我,太喜欢这种个性的音乐了 歌词 : Song :Get Crunk

发表于:2019-02-20 / 阅读(115) / 评论(0) 分类 节奏布鲁斯
学英语单词
acetic clump
acetoxylation
alligator rolling set
arythmic
bastle
batch-processing work-load model
battery switch pilot
be no skin off sb.'s back
betweenhood
biocompasses
Bol'shoy Oleniy, Ostrov
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can lead nowhere
cantarini
Carthamus tinctorius L.
centikatal
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customs declaration for imports and exports
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digital flight guidance system
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DML
driving force of heat transfer
duck-bill
edge of ski
electron transfer protein
elmenteita
elytis
ethnobotany
feedover
fixed displacement motor
gastric & intestine
Gobi
gray sea eagles
havn't
hctc
helioseismologies
Hindoo
Holy Rollerism
Hymenochlaena pteroclada
hyperptyalism
intracellulare enzyme
irreducible set
kairte
lacerating
Lindelofia stylosa
luminance distortion
maffler
major engagement
Man proposes and God disposes
masked wheel
meet the ear
Motion For Summary Judgment
MSDSL
multifee registration
multimillion-dollar
muttonheaded
Nemuel
non-translated sequence
nulli secundus
oxygenated products
pepe saddle
photographic exposure jig
phototube with caesium-oxygen-silver cathode
pieridaes
Pittacus
populationally
printing and dyeing
prolate symmetric top molecule
properly triangular matrix
provisional rules of procedure
punch heel
pyrolysates
quarterly
Quezaltepeque
reigneth
rentrant
Romneya
seaborne only
short snort
single circuit steel tower
standardization of packing
stump cutter
symbolical language
tabulae
triflorus
viably
votership
Wartenberg's disease
XML document
Zasheyek
ZTP