[化] 二甲双酮; 二甲┭唑烷二酮

WORDS AND THEIR STORIES - Dime By Jerry Watson Broadcast: Sunday, August 22, 2004 Revised by Xiao Jinyin( jinyinx@***.com ) In the 1930s, a song

发表于:2018-12-01 / 阅读(507) / 评论(0) 分类 WORDS AND THEIR STORIES

发表于:2018-12-02 / 阅读(234) / 评论(0) 分类 英语口语1+1

VOICE ONE: I'm Steve Ember. VOICE TWO: Colorful fish at Danger Reef And I'm Barbara Klein with EXPLORATIONS in VOA Special English. Today we explore the clear blue waters around the islands of the Bahamas to learn about the exciting sport of scuba d

发表于:2018-12-15 / 阅读(275) / 评论(0) 分类 VOA慢速英语2008年(八)月

This is the VOA Special English Agriculture Report. Thanksgiving Day is America's version of a harvest festival. The holiday is celebrated on the fourth Thursday in November. This Thursday, millions of Americans will join family and friends to give t

发表于:2018-12-16 / 阅读(286) / 评论(0) 分类 2010年VOA慢速英语(十一)月

'Belle' Of The Big Screen: Gugu Mbatha-Raw Stays Busy In Film play pause stop mute unmute max volume 00:0007:30repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash pl

发表于:2018-12-17 / 阅读(192) / 评论(0) 分类 2016年NPR美国国家公共电台11月

DEVELOPMENT REPORT - Nobel Peace Prize Winner Wangari Maathai By Gary Garriott Broadcast: Monday, October 18, 2004 This is Gwen Outen with the VOA Special English Development Report. Graphic Image Ken

发表于:2019-01-02 / 阅读(252) / 评论(0) 分类 农业与发展

我们上次学的几个习惯用语都含有表示五分硬币的词nickel。今天要学的习惯用语里的关键词汇是币值仅高于nickel的dime。然而出乎意料的是dime比 nickel和一分硬币penny都要小。它是美国钱币中最小

发表于:2019-01-11 / 阅读(213) / 评论(0) 分类 美国习惯用语

我们上一次讲了由penny 也就是分币组成的几个习惯用语。美国人用的硬币除了penny还有好几种。例如,价值比penny高一点儿的有五分和一毛的硬币。它们是: nickel and dime。不论Nickel还是dime都是零

发表于:2019-01-11 / 阅读(259) / 评论(0) 分类 美国习惯用语

VOICE ONE: I'm Faith Lapidus. VOICE TWO: And I'm Bob Doughty with EXPLORATIONS in VOA Special English. Today we tell about female scientists around the world and some of the problems they face. (MUSIC) VOICE ONE: Women have been making scientific di

发表于:2019-01-11 / 阅读(310) / 评论(0) 分类 VOA慢速英语2009年(五)月

By Delia Robertson Johannesburg 01 November 2006 Former South African president, P.W. Botha, has died at his home in Wilderness on the country's southern coast. He was 90. VOA's Delia Robertson has this profile on the man who introduced some reforms

发表于:2019-01-12 / 阅读(316) / 评论(0) 分类 2006年VOA标准英语(十一月)

By Challiss McDonough Cairo, Egypt 25 May 2006 Egyptian pro-reform judges stand in front the Supreme Court house during an anti-government protest in Cairo, Egypt, Thursday, May 25, 2006 At least 300 pro-reform judges in Egypt stood in silent protes

发表于:2019-01-13 / 阅读(280) / 评论(0) 分类 2006年VOA标准英语(五月)

Thailand's Supreme Court has found former prime minister Thaksin Shinawatra guilty of a conflict of interest involving a land deal his wife arranged. As Ron Corben reports from Bangkok, Thai prosecutors say they will ask for Thaksin's extradition fr

发表于:2019-01-13 / 阅读(219) / 评论(0) 分类 VOA标准英语2008年(十月)

Middle class red shirt supporters Uraiwan Suwannasang, left, and Teerapan Suwannasang, in front of photos of their children at home in Ban Pheu, 17 May 2010 Many of the so-called Red-Shirt protesters who have spent more than two months demonstrating

发表于:2019-01-13 / 阅读(244) / 评论(0) 分类 VOA标准英语2010年(五)月

On the day South Korea formally bid farewell to its former president, the country's current president held a groundbreaking meeting with a team of high-level North Korean envoys visiting to pay respects. A vehicle putting up a portrait of late forme

发表于:2019-01-14 / 阅读(223) / 评论(0) 分类 VOA标准英语2009年(八月)

A: What can I do for you today? B: Doctor, I have the worst toothache! A: How long have you had this pain? B: For about a week or so, but its gotten really bad in the last couple of days. A: Did you do anything that might have aggravated your tooth?

发表于:2019-01-15 / 阅读(294) / 评论(0) 分类 英语情景对话-健康

A: So what brings you to my office today? B: My tooth is killing me! A: How long has your tooth been bothering you? B: It just started hurting me last night. A: Have you injured your tooth in any way? B: I think one of my fillings might be coming loo

发表于:2019-01-15 / 阅读(247) / 评论(0) 分类 英语情景对话-健康

A: How have you been doing? B: I cant sleep or eat. I have a really bad pain in my tooth! A: How long have you had this toothache? B: It bothers me off and on, but its gotten much worse these past few weeks. A: Is there anything that youve done to yo

发表于:2019-01-15 / 阅读(252) / 评论(0) 分类 英语情景对话-健康

A third Saturn moon may have a subsurface ocean with potential for life, researchers say. 研究人员日前表示,第三颗土星卫星可能存在表面深层海洋及潜在生命形式。 Using gravity data from the Cassini probe, researchers at

发表于:2019-02-02 / 阅读(209) / 评论(0) 分类 英语新闻

What babies know fascinates doctors, researchers and parents. With technology that can measure brain waves and other indicators, what researchers are finding is that babies know more than we suspect. What do they know and when do they know it? Such q

发表于:2019-02-07 / 阅读(209) / 评论(0) 分类 VOA标准英语2010年(五)月
学英语单词
2-(octylthio)ethanol
absolute time
african coral snakes
analog data sink
architectural sketch
automated cargo expediting system
backtag
bantin
barbituric
Barrana
boundary of soil horizons
box lumber
brachman
Bran, River
brine sparge
building steel
Burträsk
calcium ethoxide
Carex chinganensis
chacma
chromomeres
circumoral freckle
clear declaration
clingings
compiling routine
crapface
critical potential gradient
croal
crowd out of
double -end adjustable spanner
Ehf - extremely high frequency.
elapsed time
electroluminescent storage
endogenous diurnal rhythm
false joint
fibrauretinum
fish pot
flare ignition package
four figures
function check flight (fcf)
fuzzy matrix
gas circuit
girondisms
Good gracious me !
gravity feed principle
grommet wire range
haerothecia
Haiti
her majesty's pleasure
hollow line
holten
IMMI
inclined haulageway
insinuate into
isoproterenone
J. B. C.
lepidokrocite (lepidocrocite)
leveraged-buyout
m-nitrobenzophenone
m-rated
magnitude condition
maintenance department expense
mechanical virginal
minimisers
muscularis externae
national insurances
natural drainage system
negative association
nitroso-haemoglobin
normal electrode configuration
outfitting yard
output jack
PALAEOPTERYGH
partial decision procedure
paulownia rehderiana hand.-mazz.
phosphopantheteinyl
powdery scab of potato
pressure type carburetor
printer redirection
productize
radiant heating floor
radiant tube
recruiting agency
rehab-mobile
reinsurance business
releis
self-titled
shock bottle
single-capacity system
skullplate
speciosities
spectral absorption index
stamp albums
steel welding construction
technical service group
thyrsi-
triplication design
trisimulus filter
uteroferrin
utility design
yoke mandrel
Zanthoxylum motuoense