[机] 氯化硼

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(234) / 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(177) / 评论(0) 分类 科技之光

AMERICAN MOSAIC - New Young Artists Honored With Awards from Scholastic Corporation CHRISTOPHER CRUISE: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) I'm Christopher Cruise. On our program this week, we play music from Lady Gagas latest

发表于:2018-12-16 / 阅读(183) / 评论(0) 分类 2011年VOA慢速英语(五)月

Smirting 以借火和某人搭讪 Diarmuid: Hello Im Diarmuid. Feifei: Why are you looking so happy Diarmuid? Diarmuid: Well, earlier today, I was outside on my telephone, when a lady asked me for a lighter. I think she might have been trying to smir

发表于:2018-12-27 / 阅读(155) / 评论(0) 分类 英语时差8,16

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(205) / 评论(0) 分类 口腔临床英语对话

Thank you, Mr. Chairman. Mr. Chairman, I join my colleague Mr. Rangel in thanking you for giving the junior members of this committee the glorious opportunity of sharing the pain of this inquiry. Mr. Chairman, you are a strong man, and it has not be

发表于:2018-12-30 / 阅读(221) / 评论(0) 分类 名人演讲

Several listeners have written with questions on when to use the definite article the, the indefinite article a, or neither. For example, Tracy W. wrote, Which is correct: Thank you for taking time to review my application, or Thank you for taking th

发表于:2019-01-02 / 阅读(156) / 评论(0) 分类 英语语法 Grammar Girl

New Report Shares Secrets of Rare Blue Diamonds History The Hope Diamond is one of the worlds most famous jewels. It was in the possession of a series of people: kings, bankers, rich women and thieves, before its arrival 60 years ago at the Smithsoni

发表于:2019-01-03 / 阅读(224) / 评论(0) 分类 2018年VOA慢速英语(八)月

AMERICAN MOSAIC -April 12, 2002: Artists Honored at an African American Awards Ceremony / Yosemite National Park / New Museum of Folk Art HOST: Welcome to AMERICAN MOSAIC — VOA’s radio magazine in

发表于:2019-01-08 / 阅读(226) / 评论(0) 分类 American Mosaic

Young Kenyan Artists Face Tough Market At the Kuona Trust, a visual arts center in a Nairobi suburb, artists work out of converted shipping containers. Kuona's mission is to provide opportunities for its artists to produce world-class art in Kenya. S

发表于:2019-01-13 / 阅读(152) / 评论(0) 分类 VOA标准英语2012年(八月)

Contemporary Events Inspire Arab Hip-Hop Artist A Moroccan woman who only discovered her talent as a hip-hop performer when she came to study in London is now at the forefront of this musical genre. Master Mimz delivered her own commentary on the Ara

发表于:2019-01-14 / 阅读(183) / 评论(0) 分类 VOA标准英语2011年(十月)

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(179) / 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(189) / 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(180) / 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(182) / 评论(0) 分类 英语单词荟萃

Todd: Shona, do you have any talents or interests like art or music or cooking? Shona: Yeah. Actually, I really, really enjoy art. I like to sort of study different artists and look at art from the past, but I also paint myself so I like to go to art

发表于:2019-02-09 / 阅读(143) / 评论(0) 分类 原版英语对话1000个

The black-and-white film The Artist was the big winner at Sunday's 84th Annual Academy Awards -- the Oscars -- capturing best picture and major awards for its director and lead actor. Frenchman Jean Dujardin won the Oscar for Best Actor for his role

发表于:2019-02-18 / 阅读(377) / 评论(0) 分类 英语新闻

LOS ANGELES, Feb. 25 (Xinhua) -- The contender for top Academy Awards including best director and picture The Artist won big at the 27th annual Film Independent Spirit Awards held Saturday afternoon in Santa Monica, California, grossing four major ho

发表于:2019-02-18 / 阅读(393) / 评论(0) 分类 英语新闻

Veteran Oscar Host Billy Crystal opened the 84th Academy awards ceremony Sunday with jokes about his age and attempts to attract a younger audience to the annual show. The segment included a long pause while Crystal, who has hosted the awards show ni

发表于:2019-02-19 / 阅读(391) / 评论(0) 分类 英语新闻

AMERICAN MOSAIC - Artists Paint the Town in Baltimore JUNE SIMMS: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) Im June Simms. This week on our program, we talk to Ben Nichols, lead singer and songwriter for the band Lucero. We also repo

发表于:2019-03-16 / 阅读(1886) / 评论(0) 分类 2012年VOA慢速英语(四)月
学英语单词
(radiation) thermocouple
aboundance
analog signalling
Androstanazol
antiurbanization
arv
attachment protein
bombard with
box parallel
bridge guage
burlet
bus ticket
case-hardening steel
centrode
cerveris
cieslewicz
cocoanut shell
commutator bush
coping with two-way wash
corner hit
defect schizophrenia
depth drill
destroyed aircraft
diagonal web member
differential type galvanometer
dilution analysis
double sum
entoyre
estate list
family sclerotiniaceaes
fanning
FD (floor drain)
finished products ledger
flame-flower
gas-turbine electric locomotive
glucosaemia
gnammas
gorgoneions
halibuts
holed out
Imferdex
in use programming
inavailable
incentive wage payment plan
incoercible vomiting
iron and steel casting
isosulpride
joskin
kerb-crawlings
Kodak relief plate
koji tray
konseals
leatrice
limited information method
listmaker
manganic formate
mass dissipation
metapsychosis
moggie
myocardiocytes
non spectral color
on sufferance
orlovius flask
overrange
paging mode
penciliform
piece end
pirouets
PL
plessis
proket
pseudococcids
receive only (ro)
relation of coastal and inland industry
relocatability of stack
resin guaiac
retrorsely
rim tubeless valve hole
saccing
salameh
Sannīriyah
select visible cells
sender comment
share of tax bases
slip fracture
spell-off
sshl
standard times
Staroye Alparovo
Street Tacos
streptosaluzide
studio-quality
supply of equipment
surnias
termination of insurance status
tumens
turbo-driven turbo-compressor
University of Miami
vermeselly
visual colorimeter
Volc.
voltolize