[化] 三硫化四磷

A: I need to get internet. B: Which kind of internet connection do you want to get? A: What kind can I get? B: There is dial-up or DSL. A: Which one do you feel is best? B: I would get DSL if I were you. A: DSL is better than dial-up? B: It's the bes

发表于:2018-11-30 / 阅读(195) / 评论(0) 分类 英语情景对话-日常生活

A: I'd like to have internet on my computer. B: Do you know what kind of internet you would like to get? A: What are my options? B: You can either get dial-up or DSL. A: Which one would you recommend? B: DSL is the best choice. A: Why is DSL better?

发表于:2018-11-30 / 阅读(209) / 评论(0) 分类 英语情景对话-日常生活

Unit 2 询盘 Inquiry 询 盘 Brief Introduction 在对外贸易中,交易的一方欲出售或购买某种商品,向另一方询问买卖该商品的各项交易条件,这种口头的或书面的表示,在进出口业务中称之为询盘或询

发表于:2018-12-03 / 阅读(396) / 评论(0) 分类 外贸实务口语

TEXT Many people in the United States spend most of their free time watching television. Certainly, there are many worthwhile programs on television, including news, educational programs for children, programs on current social problems, plays, movie

发表于:2018-12-04 / 阅读(270) / 评论(0) 分类 大学英语精读第一册

心灵歌汤 Tranquility

发表于:2018-12-06 / 阅读(174) / 评论(0) 分类 心灵歌汤

The little splints of wood which we call matches are made out of deal or pine wood which has been soaked in melted paraffin wax to make it burn more easily. 这种被我们称之为火柴的薄木片由欧洲赤松(松树)制成, 在液体的石蜡

发表于:2018-12-18 / 阅读(118) / 评论(0) 分类 英国学生科学读本

Have you ever had a problem getting a match to light? If so, you might be using the wrong type of match. There are actually two different types of matches: safety matches and strike-anywhere matches. 以前你点燃火柴时有没有点不着的时候呢

发表于:2018-12-18 / 阅读(104) / 评论(0) 分类 2018年NPR美国国家公共电台2月

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(125) / 评论(0) 分类 cnn2009年(十一)月

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:2018-12-30 / 阅读(148) / 评论(0) 分类 单词解析速记

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(191) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? Life on earth requires six basic ingredientscarbon, hydrogen, nitrogen, oxygen, sulfur and phosphorus. Those six elements are the building blocks for DNA and R

发表于:2019-01-08 / 阅读(143) / 评论(0) 分类 Scientific American(十二)月

This is the VOA Special English Agriculture Report. Hogs at an Ohio farm Research shows that waste from pigs that are fed a special kind of corn may help a farmer's crops. And it also may help the environment. Any farmer who raises swine knows that

发表于:2019-01-11 / 阅读(178) / 评论(0) 分类 VOA慢速英语2008年(八)月

From VOA Learning English, this is the Health Lifestyle report. Garlic is one of the most common cooking ingredients around the world. Many dishes in Europe, Africa, Asia and the Americas use this strong-flavored vegetable. Garlic is similar to other

发表于:2019-01-12 / 阅读(184) / 评论(0) 分类 2016年VOA慢速英语(十二)月

By Peter Fedynsky Moscow 18 July 2007 Officials in Ukraine are assessing the damage of a train crash in western Ukraine that sent huge clouds of burning phosphorus billowing into the air. The accident, which took place Monday, is raising health conce

发表于:2019-01-12 / 阅读(147) / 评论(0) 分类 2007年VOA标准英语(七月)

MARY LOUISE KELLY, HOST: Summertime brings algae blooms to many parts of the country - those mats of bright green organisms that can blanket waterways. In places like Florida's Lake Okeechobee, the blooms hurt tourism. They kill fish. They threaten w

发表于:2019-01-17 / 阅读(135) / 评论(0) 分类 2018年NPR美国国家公共电台7月

Black Tongues and Stomach Aches Don: Oh, no, Ya?l, I think I'm having a medical emergency. Quick! Call an ambulance. Ya?l: A medical emergency, Don? Are you sure? You look fine to me! D: But I'm not. This morning, I had a terrible stomach ache. And n

发表于:2019-01-26 / 阅读(119) / 评论(0) 分类 英语听力文摘 English Digest

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(127) / 评论(0) 分类 英语听力文摘 English Digest

By Cynthia Kirk ENVIRONMENT REPORT -May 31, 2002: Coqui Frogs Invade Hawaii This is the VOA Special English ENVIRONMENT REPORT. Experts say the American state of Hawaii has been invaded by a small fro

发表于:2019-01-28 / 阅读(166) / 评论(0) 分类 健康与环境

The commercial potential for the stuffwhich soon became known as phosphorus, from Greek and Latin roots meaning light bearingwas not lost on eager businesspeople, but the difficulties of manufacture made it too costly to exploit. An ounce of phosphor

发表于:2019-01-29 / 阅读(127) / 评论(0) 分类 万物简史

Matches Striking matches, on this Moment of Science. Have you ever had a problem getting a match to light? If so, you might be using the wrong type of match. There are actually two different types of matches: safety matches and strike-anywhere matche

发表于:2019-02-26 / 阅读(130) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
absorption lens
Alpha-Chalcocite
anguids
asymmetric climbing ripple
ball and socket coupling
brevin
broken-stripes
capacity market
cerebri epiphysis
certificate of secondery education
chionodoxa
chloroacetanilide
cigarette-pack
cold water tank
contemptuously
curteous
destin
diaterma
direct export
Ecarazine
enumerative algorithm
error of method
father-inlaw
Faïmbé
filmsetting
flexible conduit
foul the trail
fragmentation bomb
gas-oil separator
gear lift
Georgia, State of
Gerzen
global society
goblinesque
Great Falls
hnpcc
hornfels
horrors of racism
humberstone
Hymenogastales
hyperchimaera
hypertext systems
i-knit
intrusively
isosorbide dinitrade
kastrup
Kerley line
KINJIKI
l.b.j
Lamard
lehtrie
lunicurrent interval
medium-basic eruptive
mega-dose
message processing distribution system
metal jacket
Mondeo Man
monthly account
mule spinning
Nodi lymphatici iliaci communes intermedii
nonpiezomagnetic
Notosudidae
onerier
paracalanus nanus
parlour games
pendular rotatory test
phenomenological sociology
photocoupler
pigout, pig-out
power shot
procapitalist
prohibition of carriage
re-cohabitation
reciprocal business
rotating sleeve type magneto
S.M.M.
sardello
scouts out
separate machine
sludge process
spray boom
Stan. Law.
stenochoric
strata zonale
strongboxes
sugar pills of live poliomyelitis vaccine
tattle on
telepad
test of Spearman's rank-correlation coefficient
training bill
traintime
triangular beacon
twango
twin cylinder pump
two-way automatic distributor
Ustyurt Plateau
virtual machine storage
volunteer growth of wheat
water-cooled magnetron
white cinnamons
whitemail
withdrawal error