[化] 标记原子; 示踪原子

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(213) / 评论(0) 分类 疯狂英语2003年

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 jar [ dVB: ] The fall jarred every bon

发表于:2018-12-05 / 阅读(162) / 评论(0) 分类 每日攻克5词

Broadcast: July 15, 2003 This is Bill White with the VOA Special English Agriculture Report. On July second, the European 1)Parliament agreed to let new 2)genetically changed products enter the Europe

发表于:2018-12-07 / 阅读(126) / 评论(0) 分类 VOA2003(下)-农业与经济

MICHEL MARTIN, HOST: And now to the civil rights phrase of this moment - Black Lives Matter. You'll see those words on T-shirts or on yard signs or billboards. It's easy to forget that something that's become such a part of a culture started just a f

发表于:2018-12-17 / 阅读(89) / 评论(0) 分类 2018年NPR美国国家公共电台1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(176) / 评论(0) 分类 雅思英语

Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in

发表于:2018-12-27 / 阅读(157) / 评论(0) 分类 2014年ESL之商务英语

Now Your Turn Task 1 SAMPLE DIALOG Jane: Some countries are suffering from crop failure and famine, but why do they refuse genetically modified crops and foods? Bob: And many Europeans insist that processed foods containing GM ingredients be labeled.

发表于:2018-12-29 / 阅读(113) / 评论(0) 分类 新视野大学英语:视听说教程 4

IV. Speaking Out MODEL 1 Why are people protesting against genetically modified foods? Susan: With so many people suffering from malnutrition around the world, why are people protesting against genetically modified foods? Chris: Some people are prote

发表于:2018-12-29 / 阅读(106) / 评论(0) 分类 新视野大学英语:视听说教程 4

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(131) / 评论(0) 分类 阅读空间

This is the VOA Special English Agriculture Report. New rules will let millions of Americans know where more of their food came from. The law is known as COOL -- Country of Origin Labeling. Congress first passed the law in two thousand two. Stores h

发表于:2019-01-11 / 阅读(121) / 评论(0) 分类 VOA慢速英语2008(十)月

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(136) / 评论(0) 分类 英语口译

台湾籍旅美老师今天交给我们的句子是: I sometimes feel judged and labeled as lazy by my husband and others because Im not an early bird. 我有时候会觉得被我先生或是其他人评断与贴上懒人标签,因为我不是个勤

发表于:2019-01-20 / 阅读(110) / 评论(0) 分类 留美老师带你每日说英文

今天我们要学的词是label。 Label, 标签,标记,作为动词,就是贴标签,归类的意思。 He was labeled a troublemaker, 他被说成是个捣蛋鬼。欧洲法律规定,凡是基因改良含量超过0.9%的食物,生产厂家

发表于:2019-01-26 / 阅读(122) / 评论(0) 分类 英语单词荟萃

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(116) / 评论(0) 分类 万物简史

一位保加利亚艺术家制作的一系列另类欧洲地图近来在网络上受到热捧。在这些地图中,每个国家和地区的名字都用别国国民对其固有的印象来标注,例如,在名为美国眼中的欧洲的地图上,

发表于:2019-02-02 / 阅读(110) / 评论(0) 分类 阅读空间

Shanghai authorities are testing alleged mislabeled mutton from a wholesaler which supplies a chain of hot pot restaurants run by U.S. fast food firm Yum Brands. Shanghai food safety inspectors have raided a wholesale market and found packages labele

发表于:2019-02-03 / 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(116) / 评论(0) 分类 实用英语

By Nick Wadhams Nairobi 11 July 2007 An international media group says Eritrea is jailing more journalists than any other nation in Africa. As Nick Wadhams reports from our East Africa bureau in Nairobi, the harsh conditions have forced many journali

发表于:2019-02-11 / 阅读(185) / 评论(0) 分类 2007年VOA标准英语(七月)

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(134) / 评论(0) 分类 英语口语

thread n.(缝衣服的)线;头绪 Do you have a needle and thread I can borrow? 你有针和线可以借我吗? I missed a few words, so I lost the thread of what you were saying. 我错过了几个字,因此我弄不懂你在说什么。 T

发表于:2019-03-17 / 阅读(470) / 评论(0) 分类 赖世雄进阶英语词汇3500
学英语单词
add-and-subtract relay
American breakfast
anodie oxidation treatment
Aruma
ascodesmis nigricans
auditnet
backfired
better-life
bitterer
brzao-
circumcolumnar
clips
Clé, R.
coefficient of partial regression
Colquhounia vestita
common-mode input impedance
comprehensive two-dimensional chromatography
computer-managed instruction (cmi)
condemnant
crispy handle
crypto-fascistic
culver
date horizon
deadlights
deep-out-of-the-money option
dependent office
developing world
diadophiss
dichamanetin
distance drive
doped lubricating oil
doubilet
earthmother
eBayed
edutainment
election committee
electromechanical amplifier
English legal system
exsertum
filter-feeders
Flinders Grp.
forth rivers
gamino
gasometres
gleg
gravity gradients
harrowingly
heat sterilization machine
high-tension wire to lst cylinder
humodil
injection parameter
ionosphere layer
jada
Jewtard
kinara
kokoshniki
lexical categories
liquid helium four
long sword
lucifer intemedius
make a balk
manufacturer's
melanospermous
mineral tars
nailless
negated combined condition
non-probability sampling
octal representation
optimum level of population
parallel burning
perking up
philhellenisms
physiologically
plant superintendent
podfa
prelations
primary measurement
redraftings
releasors
rise and falling saw
Rochefort-en-Terre
Saxifraga forrestii
Saxifraga georgei
schwartzes
scotchchrome
set copper
ship-berthing impact
shop-floors
short stature syndrome
single-coil ignition
social releaser
stasite
Stourport-on-Severn
sum to
taken our eyes off
Tarahumara
tea tree oil
tenorrhaphies
thadani
throwing down
trailing-edge
vinylstannane