未键结原子

A Century of Memories (1940-1949) On the first Sunday in December 1941, Americans were doing what Americans did on any normal Sunday.

发表于:2018-11-28 / 阅读(206) / 评论(0) 分类 疯狂英语2003年

Catch Me If You Can FBI Agent: I'd like you to take a look at something for me. Tell me what you think. Frank: That’s a 1) fake. FBI Agent: How do you know? You haven’t looked at it. Frank: Well,

发表于:2018-11-28 / 阅读(214) / 评论(0) 分类 疯狂英语2003年

Scathing criticism is building against BP, the latest coming from Interior Secretary Ken Salazar. He just wrapped up his fourth trip to BP's offices in Houston to get a progress report on the oil spill cleanup in the Gulf of Mexico. Salazar was not h

发表于:2018-12-02 / 阅读(174) / 评论(0) 分类 2010年NPR美国国家公共电台5月

This transmission is coming to you approximately half way 我们现在差不多位于 between the moon and the earth. 月球至地球的中途点 Back on earth, people watched and waited and listened. 地球上的人们满心期待地收看任务实况

发表于:2018-12-07 / 阅读(77) / 评论(0) 分类 2013年VOA慢速英语(三)月

[00:00.00]Lesson 4 Atom [00:01.95]原子 [00:03.89]The really strange thing about atoms is that most of us will never see one. [00:08.87]原子最奇特之处在于绝大多数人永远也无法看到它。 [00:13.84]Atoms are so small that it's impo

发表于:2018-12-08 / 阅读(112) / 评论(0) 分类 赖世雄学英语第四册

雅思听力场景词汇:化学词汇 在雅思听力考试场景中,化学相关的场景的词汇较为生涩,平时生活中可能也运用得比较少,以下的词汇供大家参考喔。 molecule 分子 particle 粒子 ion 离子 particle

发表于:2018-12-19 / 阅读(171) / 评论(0) 分类 雅思英语

Finn: Hello, Im Finn. This is 6 Minute English and Im joined this week by Neil. Hello Neil. (Monkey sounds) Finn: Err, Neil? (Monkey sounds) Finn: Neil, are you OK? (Monkey sounds) Finn: Actually that wasn't Neil, you'll be glad to know, he is safe a

发表于:2019-01-07 / 阅读(144) / 评论(0) 分类 六分钟英语

We have bigger houses and smaller families; more conveniences, but less time; we have more degrees, but less common sense; more knowledge, but less judgement; more experts, but more problems; more medicine, but less wellness. We have multiplied our p

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 英语美文

We have multiplied our possessions, but reduced our values. We talk too much, love too little and lie too often. We've learned how to make a living, but not a life; we've added years to life, not life to years. We have taller buildings, but shorter t

发表于:2019-01-11 / 阅读(128) / 评论(0) 分类 阅读空间

Pakistan's Bonded Laborers Trapped in Cycle of Debt 巴基斯坦契约劳工陷入债务圈套 ISLAMABAD In Pakistan today, more than 2 million people, including children, work as bonded laborers, a system the United Nations describes as modern-day s

发表于:2019-01-14 / 阅读(122) / 评论(0) 分类 VOA标准英语2014年(五月)

(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g. The hydrogen atom is near1y l6 times as

发表于:2019-01-17 / 阅读(117) / 评论(0) 分类 英语口译

英语中表示倍数减少的表达方法(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g

发表于:2019-01-17 / 阅读(130) / 评论(0) 分类 英语口译

Fortunately more sober types were at work elsewhere. In 1808, a dour Quaker named John Dalton became the first person to intimate the nature of an atom (progress that will be discussed more completely a little further on), and in 1811 an Italian with

发表于:2019-01-29 / 阅读(112) / 评论(0) 分类 万物简史

The structure of atoms and the significance of protons will come in a following chapter, so for the moment all that is necessary is to appreciate the organizing principle: hydrogen has just one proton, and so it has an atomic number of one and comes

发表于:2019-01-29 / 阅读(118) / 评论(0) 分类 万物简史

WASHINGTON, May 1 (Xinhua) -- Scientists from IBM on Wednesday unveiled the world's smallest movie, made with one of the tiniest elements in the universe: atoms. Named A Boy and His Atom, the movie used thousands of precisely placed atoms to create n

发表于:2019-02-04 / 阅读(111) / 评论(0) 分类 英语新闻

俗话说:一母生九子,九子各不同。这句话在我邻居家孩子的身上体现得淋漓尽致。大女儿心灵手巧,做什么像什么;而二女儿却刚好相反,总是笨手笨脚。All thumbs就用来形容她这种笨手笨脚

发表于:2019-02-06 / 阅读(111) / 评论(0) 分类 实用英语

Dating back as far as the early Qing Dynasty, Lanzhou Guzi, the local ballad of Lanzhou, the capital of northwest China's Gansu province, has been passed on from mouth to mouth for about 400 years. Going through ups and downs, this art form has survi

发表于:2019-02-14 / 阅读(160) / 评论(0) 分类 英闻天下

出口信贷 export credit 出口津贴 export subsidy 商品倾销 dumping 外汇倾销 exchange dumping 优惠关税 special preferences 保税仓库 bonded warehouse 贸易顺差 favorable balance of trade 贸易逆差 unfavorable balance of trade

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

1.心事重重 some thing weighs heavily on ones mind The boss is quite down these days. He seems to have something weighing heavily on his mind. 老板这几天沉默寡言,看起来好像是心事重重的 2.苦苦哀求 press ones suit She press

发表于:2019-02-19 / 阅读(128) / 评论(0) 分类 英语口语

Finance and economics 财经商业 Copper 铜 Broken contacts 破碎的联系 Finance, not economics, may explain copper's recent plunge 金融市场而非经济状况造成了近期的铜价下滑 THE copper price has long been held to signal the st

发表于:2019-03-09 / 阅读(195) / 评论(0) 分类 经济学人商业系列
学英语单词
ACV (automatic control valve)
ad hoc resources
adrenocorticortropic hormone (acth)
andeclase (andesine)
arteria genus inferior medialis
artificial anterior teeth
bemoradan
Bodal's test
Bīsha
cadmium alloy
charcuteries
cholysteramine
churn drill
color square
compact Abelian group
continuously acting computer
contract voyage
control equipment
coward-like
dancerly
deoxyoligonucleotide
down-to-ground openwork screen
drilling rate logging
dysanalite(dysanalyte)
electrode for cast iron
endocrocin
ensweetening
executive selection
eyesse
fencing sword
fibre multiplexer
food-safe
forevacuum pressure
freebuf
get someone off the hook
Grono
halo effects
heat eliminating medium
hols
hydrographic publications
I. P. P. F.
junior lightweight
keet seel ruin
kennard
lacturamic acid
Lebbardt's sign
linous
logging saw
machine-recognizable (machine-sensible)
maturity ladder
maximum reflectance of vitrinite
meet draft
methanedicarbonic acid
middle square file
mini-satellite
mistura diuretica
model pond
multiparters
nested boat
noogied
Novokachalinsk
orchestrabudget
p.o. box
palmster
parkinsonians
Phenycholon
piloure
plane tables
plant chemosystematics
Pyridinate
Rameses
ratana
resectional therapy
riksdalers
rotating choke-coil
rubber bumpar
rubrozem
sactopic vision
schilleriana
self healing network
semi-pervious zone
shore up something
single-horse
sludge dewatering equipment
soak temperature
splatterdash
starsearches
sulcus for superior sagittal sinus
susceptance standard
swish off
taipei county cultural center
taxonchorology
telephone block system
tension suture
thickoes
thymic alymphoplasia syndrome
vibration elimination
wear out failure
well-queme
William Strickland
Zionizing