原子时标

Without air, there would be no fire. There would be no cars or trucks, since motors need air in order to work. Without air, there would be no wind or clouds. There would be no weather, as we know it.(

发表于:2018-12-01 / 阅读(198) / 评论(0) 分类 自考英语(一)78讲

Hello, I want a cab. OK. What address is it? 1120 East 32nd Street. Right. The cab will be there in a few minutes. Would you mind passing the salt, please? Certainly. What's your job? I'm an accountant. Oh! Do you enjoy it? No. I don't really like it

发表于:2018-12-03 / 阅读(76) / 评论(0) 分类 初级英语听力

When Stephen Hawking was writing A Brief History of Time, his editors told him that he would lose half of his readers for each equation (方程式) he put in the book. Despite this warning, Hawking found it necessary to include one equation. His choic

发表于:2018-12-04 / 阅读(87) / 评论(0) 分类 人教高中英语高二

Five Minutes to Midnight 滴!答!滴!毁灭倒数计时 by Kevin Lustig The University of Chicago publishes the Bulletin of the Atomic Scientists, a magazine about topics related to nuclear technology. On the cover of every issue of the magazin

发表于:2018-12-08 / 阅读(86) / 评论(0) 分类 常春藤解析英语

The mayor of the Japanese city of Nagasaki has taken time to criticize the Japanese government's refusal to sign a non-proliferation treaty earlier this year. Tomihisa Taue made has blasted the government during the ceremony to mark the atomic bombin

发表于:2018-12-19 / 阅读(70) / 评论(0) 分类 世界各地新闻集锦

[00:00.00]1651.He never gives up. [00:01.06]他很顽固。 [00:02.12]1652.He's in a terrible mood. [00:03.45]他正在大发脾气。 [00:04.78]1653.Is he any better? [00:05.86]他比较好一点儿吗? [00:06.95]1654.You had better wise up. [00:0

发表于:2018-12-24 / 阅读(53) / 评论(0) 分类 美国常用口俚语

[00:06.37]The United States has a new official clock. [00:10.95]The clock began operating late last year in the American city of Boulder,Colorado. [00:18.39]Experts say the new clock is so exact that it will neither gain nor lose so much as one secon

发表于:2018-12-26 / 阅读(68) / 评论(0) 分类 美国英语听力80篇

There is one name in____ that ____through the English language even today. You may have ____people say, It doesn't take an Einstein to___ that or he is no Einstein. For more than fifty years, Albert Einstein has stood___ as the world____ of brain pow

发表于:2018-12-30 / 阅读(97) / 评论(0) 分类 听听测测

VOA Learning English presents Americas Presidents. Today we are talking about Harry S. Truman. He became president of the United States in 1945, a few weeks before the end of World War II in Europe. Truman took office after Franklin Roosevelt died su

发表于:2019-01-03 / 阅读(72) / 评论(0) 分类 2017年VOA慢速英语(十)月

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(83) / 评论(0) 分类 Scientific American(八)月

At the Stagedoor Manor summer camp theater, kids from all over the world put on 13 full-scale productions in three weeks. Among the many specialty summer camps in the U.S. are drama camps, where youngsters learn about theater and put on a play. There

发表于:2019-01-13 / 阅读(78) / 评论(0) 分类 VOA标准英语2010年(八)月

GWEN IFILL:Finally tonight, the tale of a top-secret town with a top-secret mission and the women who made history there. Ray Suarez has our book conversation. RAY SUAREZ:During the mid-1940s, thousands of young women got offers of good-paying jobs w

发表于:2019-01-27 / 阅读(97) / 评论(0) 分类 PBS访谈娱乐系列

We all know time is a construct, and right now, it's kept by the very precise tick of an international network of around 500 atomic clocks. 我们都知道时间是个复杂的概念。目前,世界上有一个由大约500台原子钟组成的网络,

发表于:2019-02-01 / 阅读(70) / 评论(0) 分类 阅读空间

By Mil Arcega Washington, DC 19 June 2006 watch Gates Retire report Bill Gates (file photo) Bill Gates, the man who built the world's largest software company, says he will give up his daily management duties at Microsoft in two years to devote more

发表于:2019-02-03 / 阅读(132) / 评论(0) 分类 2006年VOA标准英语(六月)

lyra 乐徽 rhythm 节奏 rhythmic pattern 节奏型 accent 重音 syncopation 切分音 meter 拍子 (time) duple meter(s) 二拍子 (2/2,2/4,2/8) triple meter(s) 三拍子 (3/2,3/4,3/8) quadruple meter(s) 四拍子 (4/2,4/4,4/8) common meter 普通拍

发表于:2019-02-07 / 阅读(78) / 评论(0) 分类 英语口译

My job at Twitter is to ensure user trust, protect user rights and keep users safe, both from each other and, at times, from themselves. Let's talk about what scale looks like at Twitter. Back in January 2009, we saw more than two million new tweets

发表于:2019-02-16 / 阅读(83) / 评论(0) 分类 英语语言学习

1.新产品的生产经营计划; 2.公司现有的生产技术能力; 3.品质控制和质量改进能力; 4.现有生产设备或将要购置的生产设备; 5.改进或购置生产设备的成本; 6.现有的生产工艺流程

发表于:2019-02-16 / 阅读(62) / 评论(0) 分类 实用英语

本期内容: Auticon, previously known as Mindspark, is one of only a handful of companies that cater exclusively for employees who are on the autistic spectrum. It was founded by Gray Benoist who, as the father of two autistic sons, saw few optio

发表于:2019-02-20 / 阅读(68) / 评论(0) 分类 夏说英语新闻晨读

Hello, I want a cab. OK. What address is it? 1120 East 32nd Street. Right. The cab will be there in a few minutes. Would you mind passing the salt, please? Certainly. What's your job? I'm an accountant. Oh! Do you enjoy it? No. I don't really like it

发表于:2019-02-26 / 阅读(123) / 评论(0) 分类 初级英语听力新版

今天我们要学的词是on hold。On hold 意思是暂时保留、搁置。The parts of Trump's executive order that prevent people from entering the US remain on hold. 川普的行政令中阻止人们进入美国境内的那部分依旧是被暂时

发表于:2019-03-07 / 阅读(131) / 评论(0) 分类 英语单词荟萃
学英语单词
ancient landform
anthemane
antisynchronism
ask the dust
bulging fontanel in infant
buzz group
carbon fiber brush
chancellorsvilles
charcoal dust
checkout gear
cholochrome
chrysose
closed porosity
code figure
color up
company directors
cotrustee
couldn't organize a piss-up in a brewery
crazy
depth zone
dirtmen
dismantle of
downclocks
drive pinion cone bearing cup
drivellings
e-tail
eddy current testing
efficiency of regeneration
english grip
ergasiology
euwe
factor factor relationship
forced lubricating pump
forword position
furskins
Garawal
glimmerous
glycylaminopeptidase
groundstaffs
hews
hippuritic facies
hydroxyestrone
Hypolactasia
inchoate right
invalid vector specification
knocking bill
kosal
lichenizing
line hard ware
loan repayments and interest
long-dated
malus transitoria (batal.) schneid.
Marsdenia koi
mold process
motion weighing
nonlinear deconvolution
nonvirilized
normal grammar
oil-to-air lube cooler
optical data-link (odl)
os capitatums
pass book custodian certificate
pazy
pencilers
photo-instrumentation
photobotany
photosensitive marking
piaroas
Pleione saxicola
policy entrepreneur
polynomial series
primary cortex
publishability
quadrax
quantum-mechanical circuit
rannou
repugnable
reticulum cell sarcoma
rnormelj
roentgen-kymography
saddle-node bifurcation
scalar photon
service sequence
single parity check code
skew Hermitian bilinear form matrix
spring lay
sprinted
sprocket shaft bearing
standard gauges
stibospora chamacyperidis sawada
temperature-change epitaxy
terrences
the ball is in sb's court
tied arch
topped crude
transmit beamforming
triggerable
umbrella type antenna
uncrimped
upside-down cake
vat bordeaux
wedown