数目平均相对分子质量

541. He likes fishing. 他喜欢钓鱼。 542. Hes a lawyer. 他是个律师。 543. It doesnt make any sense for them to still be mad at you. 他们还生你的气,这没有道理。 544. Shes a natural entertainer. 她是个天生的表演者。 545. When he was a little boy, he was

发表于:2018-11-30 / 阅读(136) / 评论(0) 分类 新英语900句之生活篇

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Just when you thought youd heard everything, scientists have found that the reason you can hear everythingincluding things that are very quietis because

发表于:2018-12-24 / 阅读(69) / 评论(0) 分类 Scientific American(四)月

relative A husband and wife were driving down the road arguing with each other. They passed a pig farm and the husband said, Are they relatives of yours? Yes, she replied, I married into the family. Notes: 1. A husband and wife were driving down th

发表于:2018-12-26 / 阅读(81) / 评论(0) 分类 英语笑话(MP3+文本)

Has Earths Gravitational Pull Been Changing? 地球的引力改变过吗? Don, why are you slouching? Dont you know its bad for you? 唐,为啥你无精打采?你不知道这对你不好? Did you know that about 200 tons of debris strike the

发表于:2018-12-28 / 阅读(50) / 评论(0) 分类 初学者听力文摘精选

[00:04.88]Why Are Maps Drawn with North at the Top ? [00:08.15]为什么地图绘制得北方在上? [00:11.42]Now it is hard to visualize a map that does not feature north at the top [00:15.24]现在很难想像一幅不是北方朝上的地图, [00:19.07]but this was not alw

发表于:2018-12-29 / 阅读(99) / 评论(0) 分类 大学英语自学教程上

A husband and wife drove for miles in silence after a terrible argument in which neither would budge. The husband pointed to a mule in a pasture. Relative of yours? he asked. Yes, she replied. By marriage. 一对夫妻开着车出去,走了很长一段时间谁也不

发表于:2019-01-02 / 阅读(83) / 评论(0) 分类 英文笑话

The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.

发表于:2019-01-08 / 阅读(92) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Heres a novel potential public health measure against the flukick up the humidity. The cold, dry months of winter signal the start of flu season. But previous resear

发表于:2019-01-08 / 阅读(99) / 评论(0) 分类 Scientific American(二)月

Thailand's People's Power Party has nominated a relative of former Prime Minister Thaksin Shinawatra to become the nation's new leader. But as Ron Corben reports from Bangkok, fighting among the PPP's factions created uncertainties before the vote.

发表于:2019-01-11 / 阅读(108) / 评论(0) 分类 VOA标准英语2008年(九月)

第21课 借物 A:I'm looking for some background information on mass media technology. Where can I get it? A:我要找些关于大众传媒技术的背景资料。去哪儿能找到? B:Mass media and journalism are all in the section with number

发表于:2019-01-11 / 阅读(85) / 评论(0) 分类 新概念英语口语宝典第一册

Everyday Grammar: Three Reasons to Learn Relative Adverbs From VOA Learning English, this is Everyday Grammar. In an earlier program, we talked about the relative pronouns who, that, and which. We promised to give you more details about how to use re

发表于:2019-01-12 / 阅读(85) / 评论(0) 分类 2015年VOA慢速英语(九)月

C Isn't Average in All Schools Any More Theres an old, but often-played, song by the late Sam Cooke whose lyrics go, in part: Now I don't claim to be an A student But I'm trying to be. And so are millions of other American children each school term.

发表于:2019-01-13 / 阅读(56) / 评论(0) 分类 VOA标准英语2012年(五月)

By Barbara Schoetzau New York 20 April 2008 Pope Benedict XVI ended his six-day visit to the United States with a jubilant mass at the 57,000-seat Yankee Stadium. From VOA's New York Bureau, correspondent Barbara Schoetzau reports the leader of the w

发表于:2019-01-31 / 阅读(92) / 评论(0) 分类 VOA常速英语2008年(四月)

A-bomb, atomic bomb 原子弹 absorption 吸收 to accelerate 加速 accelerating chamber 加速室 accelerator 加速器 synchrocyclotron 同步回旋加速器 synchrotron 同步加速器 betatron 电子

发表于:2019-02-03 / 阅读(94) / 评论(0) 分类 英文语法词汇

isolated adj. 孤立的 jurisprudence n. 法学 lander n. 登陆者 latitude n. 纬度 launch n.v.发射(导弹、火箭等) layperson n. 外行 lichen n. [植]青苔,地衣 locale n. 场所 LR=

发表于:2019-02-06 / 阅读(109) / 评论(0) 分类 英文语法词汇

Tall men may want to get married earlier, but their marriages won't go the distance like men with a shorter stature, a new study has claimed.It found the rate of divorce among short men is significantly less than among average and tall men. They were

发表于:2019-02-06 / 阅读(46) / 评论(0) 分类 英语新闻

连词while除具有当时、同时等意义外,根据上下文还有以下不同含义及其不同译法。 一、引导时间状语从句 译作当时。例如: 1. Make hay while the sun shines. 趁着有太阳晒晒草。 (乘机行事,抓紧时

发表于:2019-02-11 / 阅读(84) / 评论(0) 分类 英文语法词汇

Relative Pronouns In this weeks episode of Everyday Grammar, we are going to discuss the relative pronouns who, that and which. A relative pronoun relates to the noun it is describing. Relative pronouns introduce a relative clause. Think of relative

发表于:2019-02-12 / 阅读(79) / 评论(0) 分类 2016年VOA慢速英语(七)月

BMI stands for Body Mass Index, and it's a way to estimate whether or not an adult is over or under weight for his or her height. No equipment is necessary. You can figure out your BMI at home with a calculator. You multiply your weight in pounds by

发表于:2019-02-23 / 阅读(70) / 评论(0) 分类 英语时差8,16

Remember seesaws? Those things were great. But there was often a problem. Suppose theres a big kid on one side and a smaller kid on the other side. The seesaw just stays in one position: big kid on the ground, smaller kid up in the air. No fun. After

发表于:2019-02-24 / 阅读(81) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
adaptive jamming
adhesion(-type) tire
admov.
aeronautical charting
ankle-heights
arc length control
architectural decoration
automatic management system
bahe
bastardisations
belaced
bibiliography
blind tapped hole
blindia japonica
blood orange
boivan antigen
burst firing control
butov
calibration programming
capillaceus
carbonnade flamandes
catenation closure
Ch. L.
chiral recognition
coating stress
denibulin
diethanolamine hydrochloride
door-in-the-face technique
dreamchildren
eyeshade
facscans
feint
formulating the organization
four-five
Friedreich's spasm
gauss precision weight
geometric property
gesneria families
gill bearing
guanidines
Gusinaya, Guba
hammer damper
Hanau articulation quint
hatelike
high-power microwave assembly
indexing unit application
individual control
joint verdict
katoh
lasiosphaeria breviseta
magsaysays
mallet plugger
microworlds
Morey-St-Denis
multiple discriminant analysis
multisegment structure
national safety NET
Nehru, Jawaharlal
non-numeric character
noninformative prior distribution
nyctanassas
often and often
overlapping interface
paulownia rehderiana hand.-mazz.
phonometer
piriform areas
plethodontidaes
prime contract
prophecy-monger
rate of water exchange
rectouterine pouch
reducer pedestal
Republic of Nicaragua
resource allocation
RSAI (rules,standards and instructions)
Saussurea chingiana
scarf lip
scheduled release date
shape design sensitivity
sherards
Silver Creek
slumped condition
special levy
squarebash
state-aid
statutory rule
stream with
sulfate liquor
supercement
the Renaissance
tinamidaes
tolkienesque
tpi (total productivity improvement)
transition curve length
triangular system
tubeshoulder
uk deluxe
unparallelly
unrepresented
untaxing
valley flat
y-rotation