分子转移

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(205) / 评论(0) 分类 Scientific American(四)月

Grammar Girl here. Today, Bonnie Trenga will help us choose better transition words. This article could make you a tad hungry, because today were comparing the art of writing to the art of making a sandwich. In fact, just for today, we might need to

发表于:2019-01-02 / 阅读(211) / 评论(0) 分类 英语语法 Grammar Girl

In 1963, President John Kennedy gave a famous speech at American University. In the speech, Kennedy said the following lines: Our problems are manmade; therefore, they can be solved by man. And man can be as big as he wants. No problem of human desti

发表于:2019-01-03 / 阅读(221) / 评论(0) 分类 2017年VOA慢速英语(九)月

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(237) / 评论(0) 分类 Scientific American(十)月

A new survey of Internet security says the computer attacks are increasingly being used to make money, rather than simply to make mischief. Virus writers are finding also ways to amplify their powerthey're renting out robot armies of computers under

发表于:2019-01-08 / 阅读(253) / 评论(0) 分类 2005年NPR美国国家公共电台

Larry在咖啡馆里碰见了李华。他们会用到两个常用语:take someone under your wing和take someone for a ride。 Larry: Hey, there you are, Lihua。 LH: (Sounding tired) Oh, hi Larry。 Larry: I haven't seen you since last weekend. Wh

发表于:2019-01-08 / 阅读(196) / 评论(0) 分类 英语日常口语

Monday's meeting at the White House between President George Bush and President-elect Barack Obama is the latest symbol of a presidential transition that appears to be moving ahead smoothly, at least initially. VOA National correspondent Jim Malone

发表于:2019-01-09 / 阅读(251) / 评论(0) 分类 VOA标准英语2008年(十一月)

U.S. President George Bush and President-elect Barack Obama will meet at the White House on Monday. As VOA's Paula Wolfson reports, Mr. Bush says they will discuss the major issues facing the nation. President Bush assembled members of his Cabinet t

发表于:2019-01-10 / 阅读(190) / 评论(0) 分类 VOA标准英语2008年(十一月)

Both U.S. President George Bush and his successor, Barack Obama, are emphasizing the importance of a smooth transition, so Mr. Obama can tackle the country's economic problems as soon as he takes office on January 20. VOA's Kent Klein reports from W

发表于:2019-01-13 / 阅读(185) / 评论(0) 分类 VOA标准英语2008年(十一月)

U.S. President-elect Barack Obama is moving his White House transition forward, as political turmoil builds over the selection of his successor in the United States Senate. The governor of the state of Illinois stands accused of trying to sell the S

发表于:2019-01-13 / 阅读(226) / 评论(0) 分类 VOA标准英语2008年(十二月)

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(256) / 评论(0) 分类 2016年Scientific American(十)月

How annoying would that be? Must try harder. 多么不可思议。你要努力学习。 Being sent to bed by his dad, you know, to Shakespeare, Go to bed, now! And put the pencil down. 你能想象他父亲边说边把他抱上床,现在该睡觉了,

发表于:2019-01-18 / 阅读(197) / 评论(0) 分类 TED演讲教育篇

今天我们要学的词是transition。 Transition, 是过渡的意思。A smooth transition, 就是平稳过渡。古巴总统卡斯特罗宣布辞去国务委员会主席的职务。美国总统布什表示,希望古巴能由此开始向民主过渡

发表于:2019-01-25 / 阅读(238) / 评论(0) 分类 英语每日一词

今天我们要学的词是transition。 Transition, 是过渡的意思。A smooth transition, 就是平稳过渡。古巴总统卡斯特罗宣布辞去国务委员会主席的职务。美国总统布什表示,希望古巴能由此开始向民主过渡

发表于:2019-01-31 / 阅读(210) / 评论(0) 分类 英语单词荟萃

By Al Pessin Pentagon 19 October 2007 The U.S. military's effort to rebuild major infrastructure in Iraq will be winding down during the coming year, leaving the Iraqi government to fund the effort and to find engineers capable of handling the projec

发表于:2019-01-31 / 阅读(240) / 评论(0) 分类 2007年VOA常速英语(十月)

NATO's secretary-general says foreign forces in Afghanistan will remain on combat duty during the scheduled transition to Afghan security control in 2014. That statement by Anders Fogh Rasmussen came after U.S. Defense Secretary Leon Panetta said Ame

发表于:2019-02-08 / 阅读(217) / 评论(0) 分类 英语新闻

罩着某人 Take Someone Under Your Wing Take Someone For a Ride 在中文里,我们常常听到罩这个词,大哥罩着小弟,男生罩着女生... 那你知道它的英文表达么?来看看Larry在咖啡馆里碰见了李华的情景对话

发表于:2019-02-09 / 阅读(214) / 评论(0) 分类 英语口语

In many cases, when you turn in your resignation, you're done. Some companies expect you to give two weeks notice, others will want you out the door by the end of the day or even immediately. If it's immediately, you will be asked to box up your pers

发表于:2019-02-09 / 阅读(223) / 评论(0) 分类 实用英语

HARI SREENIVASAN: Now we turn to president-elect Trump's transition to the White House and how his team is tackling the handover of executive reins. For that, we are joined by Alex Isenstadt of Politico. So, Alex, you're reporting on this every today

发表于:2019-02-13 / 阅读(218) / 评论(0) 分类 PBS访谈社会系列

英语面试,听起来很可怕的东东.第一次去面试的人确实会觉得可怕. 这里我们就来好好学习一下英语面试中会遇到的各种各样的问题: 其中最难回答的莫过于薪水和跳槽原因等问题的回答.确实是

发表于:2019-03-11 / 阅读(240) / 评论(0) 分类 实用英语
学英语单词
a rummage sale
Actinidia cinerascens
ad hoc task
albuginea of cavernous body of penis
allocholestanone
amnigraphy
asahikawas
attendant's switchboard
basket fishing
Bekesszentandras
bench and stool cover
bsn
camoys
cartographic symbol list
chemical drain system
chloro-acetyl fluoride
Christmahanukwanzakah
clamp silo
connective tissue bones
conventional heat treatment
coopaphene
cryphaeus formosanus
Cushing, Harvey Williams
cutting-sphere-method
DC lube oil pump
detailed drawing
detergent line
dynam.
effective coefficient of local resistance
electro-hydraulic steering gear
electrode implantation
endogenotes
Fakestinian
foreign securities
fridlund
galyan
GWW
h.c.l.
harris band
horizontal cross brace
hydrogen-in-petroleum test
import substituting economy
india mustard
input/output statement
inside point diameter
intelligent paper
katabatic winds
KIMSA
Kirschner wires
limonia (goniodineura) immetata
lithy
logical switch
lower bituminous coal
lymphoplasmia
magnetoneurography
manganniobite
mcwilliam
message retention area
middle irishes
mill join
multiplecore cable
musolin
night interception
non-expendable equipment
normal anterior presentation
normal endomorphism
okimoto
overperformer
parallel-conducting-plate dielectric resonator dielectrometer
Pernegg an der Mur
pneumatic piston gauge
polyaramids
precautional
precipitating bath
punnery
radial labyrinth
rainswepts
regular wave
ribbands
rotary camera
Salocolum
sausage-roll
self interrupter
sign magnitude arithmetic
sino-carotid
sivaisms
skilledness
speech rhythms
spice sth up
stables
state variable feedback control
stenomelania costellaris
stocking foot
subsequent waterfall
suprameatal spine
take a strong line
tv-free
unluckinesses
weaversbroom
weft fork motion
zab