光学活性碳原子

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(175) / 评论(0) 分类 疯狂英语2003年

[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(93) / 评论(0) 分类 赖世雄学英语第四册

Muslim Brotherhood Ready for More Active Role in Jordan From VOA Learning English, this is IN THE NEWS in Special English. The Muslim Brotherhood is one of the largest Islamic groups in the Arab world. For years, the Brotherhood has been banned in a

发表于:2018-12-16 / 阅读(93) / 评论(0) 分类 2013年VOA慢速英语(六)月

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(141) / 评论(0) 分类 雅思英语

Why Diamonds Really Are Forever Diamonds are forever they say, and this is why: diamonds are the hardest substance known to exist. Nothing would scratch or damage a diamond,While a diamond can scratch any other material on the earth. Everything is

发表于:2018-12-27 / 阅读(67) / 评论(0) 分类 英语时差8,16

How big is your carbon footprint? Neil: This is Real English from BBC Learning English. I'm Neil. Lily: 大家好,我是杨莉。 Neil: This is the programme in which we look at words and phrases that you may not find in your dictionary. Lily: 地道英语和大

发表于:2019-01-02 / 阅读(120) / 评论(0) 分类 地道英语在线听

By Greg Flakus Scientists in Texas are trying to find a way of reducing carbon dioxide air pollution by capturing the gas, compressing it and then putting it underground. This technique could also yie

发表于:2019-01-03 / 阅读(97) / 评论(0) 分类 VOA2004(下)--健康科技

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(69) / 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(103) / 评论(0) 分类 阅读空间

And how, you may reasonably wonder, can scientists know what oxygen levels were like hundreds of millions of years ago? 你也许有理由想知道,科学家们怎么会知道几亿年以前的氧气浓度? The answer lies in a slightly obscure b

发表于:2019-01-17 / 阅读(111) / 评论(0) 分类 万物简史

(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(85) / 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(102) / 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(90) / 评论(0) 分类 万物简史

LONDON, July 4 (Xinhua) -- Anders Fogh Rasmussen, Secretary General of the North Atlantic Treaty Organization (NATO) expressed his hope on Wednesday that NATO would seek a more active dialogue with China. We must expand the range of nations with whom

发表于:2019-01-30 / 阅读(158) / 评论(0) 分类 英语新闻

SEOUL, Nov. 8 (Xinhua) -- Samsung Electronics, the world's largest flat screen TV vendor, said Tuesday that it has suspended its plan to develop active shutter three-dimensional (3D) TVs with RealD, the U.S.-based 3D technology supplier. Samsung has

发表于:2019-01-30 / 阅读(131) / 评论(0) 分类 英语新闻

今天我们要学的词是active duty。 Active duty, 现役的。星期一是美国阵亡将士纪念日。 My friend Jack is an active duty Army Captain who has deployed overseas three times, 我朋友杰克是现役陆军上尉,先后三次被派

发表于:2019-02-05 / 阅读(132) / 评论(0) 分类 英语每日一词

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(88) / 评论(0) 分类 实用英语

HARBIN, Jan. 31 (Xinhua) -- Carbon monoxide has been blamed for the Tuesday deaths of 12 workers in a coal mine in northeast China's Heilongjiang Province, a local official said Thursday. Three workers entered the Yongsheng mine in Dongning County to

发表于:2019-02-08 / 阅读(148) / 评论(0) 分类 英语新闻

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(102) / 评论(0) 分类 英语口语

BEIJING, Sep. 16 (Xinhuanet) -- Government incentives are important to pave a low-carbon road to economic growth, but companies that improve their industry models and technologies are the main players and also benefit receivers, noted officials and i

发表于:2019-02-25 / 阅读(135) / 评论(0) 分类 英语新闻
学英语单词
accumulation of oil
airborne geophysics
al minya (el minya)
al-achraf
allium ursinums
Alstroemeriaceae
andthere
angiospasmodic disease
arteria splenica
baked goods
bivariate central limit theorem
Bob and Ray
brera
bureaucrat monopoly capital
can seamer
carry with
catbells
chassis dynamometer
coeder
commodity by country system
compatible with other buildings
confusing
corduroy road
counting properties
court decree
crystallod
Diaphragm Couplings
differential-mode input impedance
double adaptor
dough mixer
electronic computer industry
endotheliotoxin
epicyclic clutch brake
eshoo
fahua colour
fine sandy loam
Fontinalaceae
foughty
freeswimmer
glyc-
grow on someone
hierarchical decision making
high consistency screening
home-court advantage
hydraulic regime
iliococcygeus
ingress pipe
interfamily exchange marriage
ischemic neuropathy
isopane
kazar
keep ... to
KHNS
Laodicean policy
lead circulating pump
leptocerus sexprostatus
logic partitioning
loop-type reactor
lumbrical
maughams
metastatements
mobile missiles
multiway switch
nodilittorina leucosticta biangulata
non function operation
one trick ponies
Osetian
panel planer
PAOI
passive surface
privisant
professorships
put off
quarantine area
quippish
re-erecting
register information of market participant
relay comparator
reparel
rest image
robust soups
roppou
sagittated
Saint Mark
Saussurea morifolia
splenalgic
stop hole
super plane
swerte
temporary credits
third state creep
tic paralyses
tide pool
toggle actuator
typhlopexia
vesse
vidigal
voltage-current curve
vretical synchronization
WirelessHART
worm family
zoonomists