倒数第二碳原子

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(215) / 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(116) / 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(179) / 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(96) / 评论(0) 分类 英语时差8,16

AMERICAN MOSAIC - October 4, 2002: Ultimate Frisbee / Question About Houston, Texas / Music by Hackberry Ramblers HOST: Welcome to AMERICAN MOSAIC - VOA’s radio magazine in Special English. (THEME)

发表于:2019-01-02 / 阅读(147) / 评论(0) 分类 American Mosaic

Todd: What sports are you into? Wendi: I like everything. I do everything. Todd: Really! Wendi: Yeah. Todd: Whats the last sport you played? Wendi: The last sport I played Im just looking at my calendar the last sport I played was probably Ultimate F

发表于:2019-01-07 / 阅读(121) / 评论(0) 分类 原版英语对话1000个

Todd: Now have you actually ever played in an organized league, like an Ultimate Frisbee league? Wendi: Yeah, I organize leagues. Todd: Oh, you do? Wendi: Yeah, I organize leagues and I represent Canada at Worlds and played against the Japanese teams

发表于:2019-01-07 / 阅读(105) / 评论(0) 分类 原版英语对话1000个

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(96) / 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(132) / 评论(0) 分类 阅读空间

ECONOMICS REPORT - Carbon Trading By Mario Ritter Broadcast: Friday, January 14, 2005 I'm Gwen Outen with the VOA Special English Economics Report. Carbon trading has its roots in the Kyoto Protocol.

发表于:2019-01-11 / 阅读(117) / 评论(0) 分类 健康与经济

By Sonja Pace London 10 January 2008 The British government has announced its support for a new generation of nuclear power plants, which it says will provide a clean source of energy and help the country fight gas emissions and climate change. Oppon

发表于:2019-01-13 / 阅读(119) / 评论(0) 分类 VOA标准英语2008年(一月)

The U.S. energy secretary says global warming is proceeding more quickly than originally predicted. Stephen Chu is in China, the world's top emitter of the greenhouse gases that cause global warming, to urge greater Sino-American cooperation to comb

发表于:2019-01-14 / 阅读(110) / 评论(0) 分类 VOA标准英语2009年(七月)

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(133) / 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(123) / 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(139) / 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(118) / 评论(0) 分类 万物简史

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(118) / 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(171) / 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(136) / 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(153) / 评论(0) 分类 英语新闻
学英语单词
Al Qurnah
antiboronizing paint
antipreferential
archipalliums
ash-blondest
assertations
attending surgeon
Bahrah
basaltware
battle of Pittsburgh Landing
bay-salt
be agreeably disappointed
be honest to absurdity
be stuffed
be under an accusation of
become excited at
bedrock geochemistry
bookbindings
bran-tub
Burham
buscemi
butline hitch
by extinctioni inhibition
callechelys marmorata
capsotomy
catch-as
center-of-mass coordinate system
chons
cinematic time and space
Collier's tract
Coloradoan stage
compuer generated hologram
consubstantiality
Cylphenicol
cyperus orthostachys franch. et sav.
date for next cycle count
Dimnah
direct viewing storage tube
distiller test tank
electronic stethoscope
euphyllia ancora
exerce
gause
Gauss plane coordinate
global platform
gustiness components
happy places
holder of a high school diploma
Hun
hydrosere
institute of education
knarr
Leontopodium muscoides
levator muscle of ribs
lifting curve
lifting fitting
maiyu
matinee jacket
maximite
mediodorsal nucleus
missing aircraft
mobile-communications
NAIRS
nephrolithiasis
NHD
non-thrombocytopenic purpura
offangle
oscillatory movement
pachystamine
pay-as-you-use
pedallers
peptogenic
phosphorgummite
pinnately compound leaf
plenarly
Port Jefferson Station
Pulosari
pulse-forming line
randomised
reaction-control aircraft
rhinoster bos
running-shorts
shooting correlation
side splits
sound-absorbing porous material
stake one's head on
straight-chain paraffin
strangelovian
sugarsync
Svidneite
take objection to
ternaries
thorn headed worm of pig
tracking program
transformational
travelling stay
triacetonediamine
vena bronchialis
water fog
well-garnished
wholesale distributor
wool cleaner