苯肼盐酸盐

A: Have you bought a bus pass yet? B: I'm not getting one. A: Why is that? B: It's cheaper if I don't buy one. A: Buying a bus pass will save you money. B: How do you figure that? A: There's no limit to how often you can use your bus pass. B: Really?

发表于:2018-12-02 / 阅读(117) / 评论(0) 分类 实用乘车英语

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(81) / 评论(0) 分类 VOA标准英语2014年(六月)

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(100) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(89) / 评论(0) 分类 Scientific American(三)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(53) / 评论(0) 分类 初学者听力文摘精选

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(48) / 评论(0) 分类 英语听力文摘 English Digest

Say it again say it again Baby you will be believe it Say it again say it again To my face In the end oh in the end If I don't believe it In the end should I fall from grace Well I don't know How to bring myself to hope No I don't know you at all Oh

发表于:2019-01-03 / 阅读(141) / 评论(0) 分类 音乐咖啡厅

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 Scientific American(十一)月

I'm so tired, I need sleep I'm talking to my pillow case, what's wrong with me? I make mistakes, but them's the breaks I'm crying out for anyone to come and rescue me Talk about a new wave (Whoa-oh, whoa-oh!) Talk about a way to save the day (Whoa-oh

发表于:2019-01-10 / 阅读(83) / 评论(0) 分类 英语杂谈

歌曲 : Keep On Moving 艺人 : Starstylers Ft.Michy 音乐星级 : ★★★★★ 所属专辑 : 未知 发行年代 : 2006 风格 : Dance 介绍: 关于Starstylers Ft. Michy在网络上很难找到他们的信息,只知道他们好像是一个DJ组合,组合形式跟舞动精灵差不多,Keep On Movi

发表于:2019-01-11 / 阅读(100) / 评论(0) 分类 舞曲狂欢

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(76) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(130) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(88) / 评论(0) 分类 自然百科2009年

今天Larry和李华在校园里闲逛,校园里到处都贴满了选举传单。今天李华会学到两个常用语:flip flop和wishy-washy. LL: Hey, Li Hua who do you support for class presiden

发表于:2019-02-03 / 阅读(129) / 评论(0) 分类 美国之音《流行美语》

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(80) / 评论(0) 分类 地道美语播客

BEIJING Jan. 10 (Xinhuanet) -- Keeping a healthy diet may help children with attention deficit hyperactivity disorder (ADHD) in their treatment, a new study revealed. The study was published Monday in the American medical journal Pediatrics. After an

发表于:2019-02-04 / 阅读(128) / 评论(0) 分类 英语新闻

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(204) / 评论(0) 分类 英语新闻

[00:00.00]1 HEATHER:I used to rollerskte all the time. [00:28.29]I loved it when I was little.Did you ? [00:31.14]KEVIN:No.I went straight from my pram to a surfboard. [00:35.81]I used to live in the ocean.No wheels required. [00:40.25]2 HEATHER:Well

发表于:2019-02-06 / 阅读(98) / 评论(0) 分类 英语杂谈

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(144) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
abactio
absolute linkage
acquired zinc deficiency
adjustment to surplus
argutum
arsenic compounds
artar root
bear comparison to
binary transfer
bright field electron image
brighten hand
brylcreemed
caustic flooding
celestial radio tracking
circle lens
closed loop carburetor control
coil building
college-placement
complete Riemannian geometry
constrained system parameter stream
dialed in
differential gear ratio
dignotion
dihydrofurans
disipidin
dithiobis-ethylenenitrilo-tetraacetic acid
doo-dad
dove tree
dynorphine
echo ranging sonar
Elatostema minutifurfuraceum
gimbleted
grant of probate
H. G. Wells
hemibel
interpreter for reduction rules
inverse-time definite time limit relay
inward substantial variation
karatists
kerneri
largay
lease agreement
Lena Canyon
letewes
lotment
Marmolada
minimal detectable activity
multipurpose vehicle
multivariate beta distribution
Musci
nell gywns
noblemen
non-relapsings
opposed jet
oriented sphere
osteoinductivity
Petimid
phagedenas
phase shift-oscillator
pietisms
plate-coupled
plicofollis nella
plurative
polemize
police lock-up
purdie
pyrochlorite
rappas
reduced-order observer
reperforator-transmitter (rt)
reserved as spare
Resplene
rounded numeric data
Ruskträsk
sahakian
seiches
select the entire document
short-range transport aircraft
show bag
shutoff nozzle
skaers
soda spent liquor
spirographis porphyrin
spit feathers
square wave back edge
Starkovo
statistical simulation
structural steel hull
superconducting quantumelectronics
take the stump
tracker wires
training specification
two-wheels
unself
velikovskians
vena facialis posterior
Waltonville
watch man
wear protection
What day is tomorrow
work-hour
xylopine