放大技术

Transcript This is Scientific American's 60-Second Science, I am Cynthia Graber.This will just take a minute. Physicists at the Brookhaven National Laboratory have been able to send information ahead of particle beams racing at nearly the speed of li

发表于:2018-12-24 / 阅读(195) / 评论(0) 分类 Scientific American(二)月

(woman) Today we're going to practice evaluating the main tool used when addressing groups --- the voice. There are three main elements that combine to create either a positive or negative experience for listeners. They can result in a voice that is

发表于:2018-12-30 / 阅读(165) / 评论(0) 分类 托福听力短文

If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning

发表于:2019-01-02 / 阅读(478) / 评论(0) 分类 2017年VOA慢速英语(六)月

2. agri 你已认识field是“田地”, 你是否也知agri的意义? 在有关农田的词汇里, field竟都被agri所代替。 agri=field 田地,农田(agri也作agro,agr) 1. agrology agr

发表于:2019-01-06 / 阅读(162) / 评论(0) 分类 英文语法词汇

Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver

发表于:2019-01-11 / 阅读(245) / 评论(0) 分类 英汉幽默故事选读

Numerous Encephalitis Cases Devastate North India In India every year, during the rainy monsoon season, hundreds of children die or become disabled, physically or mentally, after contracting Japanese encephalitis. Doctor K. P. Kushwaha is a senior pe

发表于:2019-01-13 / 阅读(158) / 评论(0) 分类 VOA标准英语2012年(九月)

ROBERT SIEGEL, HOST: Filmmaker Christopher Nolan introduced himself to audiences by telling a story backwards in Memento. He surprised audiences again by bringing seriousness to superhero movies with his Dark Knight trilogy. Our critic Bob Mondello s

发表于:2019-01-16 / 阅读(119) / 评论(0) 分类 2017年NPR美国国家公共电台7月

MICHEL MARTIN, HOST: We have another story about the Obama-era government program to shield people from deportation if they came here illegally as children. It's called the Deferred Action for Childhood Arrivals program or DACA. We've heard a number

发表于:2019-01-16 / 阅读(161) / 评论(0) 分类 2017年NPR美国国家公共电台12月

AILSA CHANG, HOST: Federal regulators plan to ban the sale of most flavored e-cigarettes at retail locations like gas stations and convenience stores. They also plan to require people buying e-cigarettes online to verify their age. From Colorado Publ

发表于:2019-01-17 / 阅读(174) / 评论(0) 分类 2018年NPR美国国家公共电台11月

New Zealand hasn't actually seen an increase in the amount of people doing sex work, 尽管无罪化让她们在新西兰从事更加安全。 but decriminalizing it has made it a lot safer. 性工作的人数并没有上升。 But the lesson from Ne

发表于:2019-01-18 / 阅读(143) / 评论(0) 分类 TED演讲国际问题篇

By Carol Pearson Washington 08 January 2008 New technology makes surgery safer, shortens recovery time and leaves no scars. Both physicians and patients are pleased with the results. VOA's Carol Pearson has more. Maria Viruet recently had her gallbla

发表于:2019-01-31 / 阅读(190) / 评论(0) 分类 VOA标准英语2008年(一月)

Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver handle the situation, we wondered. Straight-faced,

发表于:2019-02-03 / 阅读(171) / 评论(0) 分类 趣味英语

In many corners of our productivity-obsessed society, naps are associated with laziness. Everyone should sleep eight hours at night,the thinking goes, and work all through the day.But that's backward. Most people routinely woke up for several hours i

发表于:2019-02-03 / 阅读(152) / 评论(0) 分类 阅读空间

During her speech, Pritzker explains the central message of her visit to China and the U.S. side's approach to environmental protection. The central message of our visit is with responsible partnership we will do more business together and in doing s

发表于:2019-02-06 / 阅读(189) / 评论(0) 分类 英语新闻

Question: 问: Does drinking a lot of water after a massage really help flush away toxins, or otherwise augment massages benefits? 在按摩推拿后大量饮水真有助于排毒么?如果不能,那么喝水是否有助于增加按摩的效益?

发表于:2019-02-08 / 阅读(161) / 评论(0) 分类 阅读空间

Display screens 显示屏 Going through a phase 相转变 A new way to create electronic images 新的电子图案显示方法 Wave of the future? 未来之波 LIQUID-CRYSTAL displays are a familiar and ubiquitous technology. But if Harish Bhaskaran

发表于:2019-02-16 / 阅读(143) / 评论(0) 分类 经济学人科技系列

President Barack Obama is in the U.S. midwest on what the White House calls an economic bus trip through politically important states as he ramps up campaigning for the 2012 presidential election. The president faces some new poll numbers reflecting

发表于:2019-02-17 / 阅读(118) / 评论(0) 分类 英语新闻

题目: No field of study can advance significantly unless outsiders bring their knowledge and experience to that field of study. 在任何一个研究领域当中,除非有该领域之外的人引进他们的知识和经验,否则该领域就很

发表于:2019-02-19 / 阅读(135) / 评论(0) 分类 GRE作文

知识点讲解: 1、中文意思一样 insist persist 2、两个词长得像 special specialty 3、长得像+中文意思一样 technique technology ① Technique 方法、技巧 Hes a great basketball player. He has flawless technique. 他是位很

发表于:2019-02-21 / 阅读(149) / 评论(0) 分类 每天三分钟学英语

Megaphones If you want to call to a friend half a block down a crowded street, you might cup your hands around your mouth to better aim your voice. Have you ever wondered why simple megaphonesamplify your voice so well? Actually, they work for two di

发表于:2019-03-09 / 阅读(166) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
antifluoridationist
as much as one can do
ashmead
automatic dough discharger
back test
bad land
Balkan frame Balkan grippe
biggie
bivariate polynomial
blue-balling
bunnys
buscher
buyers' strike
carfloat
cash and carry system
casino capitalism
cathode drop (cathode fall)
Cedar Creek
chance
collection data
coordination games
counternarcotics
customer order processing
Czchow
digital strain indicator
direct current amplification factor
directed scan
dogmeat
easterly hour angle
epoxy coal tar pitch coating
equetus lanceolatuss
European depositary receipt
extranuclear mutant
flaouna
fogginess
friction swa
fried prawn balls
genus Dacrydium
give a fig
grass thermometer
guignardia dioscoreae
gutwrenchingly
Hagenbüchach
helical pitch
Hewish, Antony
high security prison
kam muangs
karam
khaddi (bengal)
kiel graft
kypholordosis
la salvetat
Labrador retrievers
Lugbara
marketing system
mechanical flow diagram
mispurposes
Musculus iliocostalis thoracis
necrometer
noninvasiveness
overchlorinated
party down
piano teachers
Piedra Sola
play close to the chest
play hookey
Polygonum divaricatum
poor sport
procrastinatory
program store
pyelopathy
real emotion
reclusters
referencable key word
renaturing
reshingles
russy
sardine oils
semaphore lantern
shielded glove box
short wave cut-off filter
solvent tanning
sorhaindo
sourdet
stelletin
superintendent of banks
synchronization acquisition
telesmoke
the judicature
towniest
two-deck drier
unvalid
vacuum X-ray spectrometer
volume length mean diameter
Wampusirpi
waste heat recovery surface
water supply volume
wire-rope sling
x punch
x-terms
zarontin
zinc rhodanide