谐和衰减

LULU GARCIA-NAVARRO, HOST: More people around the world are traveling for vacation and for business, but fewer are coming to the United States. New data released by the U.S. Travel Association shows that in the first seven months of 2017, there's bee

发表于:2018-12-17 / 阅读(90) / 评论(0) 分类 2018年NPR美国国家公共电台1月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Why do some chords sound sweet but others make you wince? Well it appears our earsor at least the ears of 250 Minnesota undergradsprefer chords containing harm

发表于:2018-12-24 / 阅读(157) / 评论(0) 分类 Scientific American(五)月

Students who listened to different chords rated as more pleasing the ones that westerners think of as harmonious, the individual notes of which have definite mathematical relationships 【英文文本】 Why do some chords sound sweet but others make

发表于:2019-01-02 / 阅读(147) / 评论(0) 分类 60秒科学

By David McAlary Ocean animals in parts of Antarctica are facing a food shortage. A new British study finds that a staple of the marine wildlife diet, tiny shrimp-like creatures called krill, has dram

发表于:2019-01-03 / 阅读(138) / 评论(0) 分类 VOA2004(下)--健康科技

By Jeffrey Young Americans crossing borders groan in dismay as they exchange their dollars for less and less in other currencies. Holidays in Europe, for instance, that once seemed reasonably priced h

发表于:2019-01-03 / 阅读(164) / 评论(0) 分类 VOA2004(下)--世界经济

By Deborah Block Baghdad 20 January 2008 A suicide bombing killed six people in Iraq's western Anbar province, but a prominent sheikh who was the target of the attack was not hurt. The U.S. military says roadside bombs linked to Iran have declined re

发表于:2019-01-13 / 阅读(124) / 评论(0) 分类 VOA标准英语2008年(一月)

Air Pollution Linked to Cognitive Decline Several years ago a massive survey of women called the Nurses' Health Study began collecting data on memory, thinking skills and other cognitive measures. Jennifer Weuve of the Rush Institute of Healthy Aging

发表于:2019-01-14 / 阅读(147) / 评论(0) 分类 VOA标准英语2012年(二月)

EU Hopes Pesticide Ban Will Halt Bee Decline The targeted farm chemicals, which will be banned for two years starting this December 1, belong to a class of insecticides called neonicotinoids. They are a type of insect nerve agent that has been widely

发表于:2019-01-14 / 阅读(160) / 评论(0) 分类 VOA标准英语2013年(五月)

1. I see. 我明白了。 2. I quit! 我不干了! 3. Let go! 放手! 4. Me too. 我也是。 5. My god! 天哪! 6. No way! 不行! 7. Come on. 来吧(赶快)8. Hold on. 等一等。 9. I agree. 我同意。 10. Not bad. 还不错。 11. Not yet. 还没

发表于:2019-01-15 / 阅读(165) / 评论(0) 分类 英语口译

By Melinda Smith Washington 16 November 2007 For at least three decades, Americans have been encouraged to put down their cigarettes and quit the habit -- for at least one day [November 15th]. The Great American Smoke Out, as the day is called, is de

发表于:2019-01-25 / 阅读(97) / 评论(0) 分类 VOA常速英语2007年(十一月)

Volatile trading on U.S. financial markets ended in losses on Wall Street, after President George Bush signed a massive rescue plan for U.S. economy. From Washington, VOA's Kent Klein has more on that and Friday's other economic developments. Trader

发表于:2019-02-05 / 阅读(119) / 评论(0) 分类 VOA标准英语2008年(十月)

By Nathan King New York 03 January 2008 The value of the U.S. dollar has dropped about 20 percent against a basket of major currencies in the last five years. This decline has been especially tough for immigrants who work in the United States and sen

发表于:2019-02-05 / 阅读(111) / 评论(0) 分类 VOA标准英语2008年(一月)

By Paula Wolfson Washington 11 December 2007 A new study shows American teenagers are getting the message about the dangers of illegal drugs. VOA's Paula Wolfson reports the government-funded survey shows a significant overall decline in illicit drug

发表于:2019-02-05 / 阅读(115) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Jim Fry Washington 21 August 2007 Opinion polls in the United States show the public's approval of President Bush's performance is approaching a historic low for any modern president. The polls also show a decline in the public's embrace of the co

发表于:2019-02-05 / 阅读(143) / 评论(0) 分类 2007年VOA标准英语(八月)

Vocalist Catherine Russell is always searching for that next great melody. She's found more than a dozen of them to sing on her latest album, Inside This Heart Of Mine. Catherine Russell is a perfectionist when it comes to choosing her material. Her

发表于:2019-02-06 / 阅读(149) / 评论(0) 分类 VOA标准英语2010年(六)月

By 2050, small fish could dominate(控制支配) the oceans because of the rapid decline of larger, predator fish. In a new report, the U.N. Food and Agriculture Organization finds that one-third of the worlds fisheries are overexploited, depleted or

发表于:2019-02-08 / 阅读(179) / 评论(0) 分类 英语新闻

今天我们要学的词是decline。 Decline, 拒绝。 The company declined to offer any specifics about its layoff plan, 这家公司拒绝透露裁员计划的有关细节。 The source declined to be identified because of the sensitive nature of

发表于:2019-02-16 / 阅读(105) / 评论(0) 分类 英语每日一词

今天我们要学的词是decline。 Decline, 拒绝。 The company declined to offer any specifics about its layoff plan, 这家公司拒绝透露裁员计划的有关细节。 The source declined to be identified because of the sensitive nature of

发表于:2019-02-18 / 阅读(127) / 评论(0) 分类 英语单词荟萃

Hong Kong's retail sector has shown signs of recovery for the second month, as the decline eased to 7.5 per cent in April from 9.8 percent a month earlier. But this is the 14th month in a row that retail sales have declined, the longest contraction p

发表于:2019-02-21 / 阅读(138) / 评论(0) 分类 2016CRI中国国际广播电台

1. I see. 我明白了。 2. I quit! 我不干了! 3. Let go! 放手! 4. Me too. 我也是。 5. My god! 天哪! 6. No way! 不行! 7. Come on. 来吧(赶快) 8. Hold on. 等一等。 9. I agree。 我同意。 10. Not bad. 还不错。 11. Not yet. 还

发表于:2019-02-25 / 阅读(141) / 评论(0) 分类 实用英语
学英语单词
23 Tau
a price list
actiniarians
adiabatic change
aegosoma sinica
air-lift method
Baglar
baits
baldwin-effect (sirnpson 1953)
benthic-pelagic coupling
beshagged
birthday-cake
boost horsepower
burst error channel
bypass fume hood
certificate of finality
charity visitor
circulus Willisii
Clinohollandite
committes
common beam
common teal
component elements
cryogenically-cooled parametric amplifier
cupboarding
dance party
darius
de-carbon
delivery risk
develop in an unhealthy way
distoangular impaction
Doolittle, James Harold
double-discharge gear pump
drag-rise factor
EC/IC
economic power dispatch computer
emulated data
eurycephalic
external electric field
fatty calculus
flat bed
fogeater
food companies
fullstanding
genus Dioon
Geum Japonica
grating displacement transducer
gruppe
half-model
have a bash at
ion implanter
kaplan-meier
kilgours
Loddon River
long welded rail track
lycaenas
magnolia championii benth.
manual electrode
moulding of head
multicylinder board machine
nanogram range
Newnes
oil joint
pericardium
phalanges of hand
Phlomis tibetica
phosphoreal
placid clustered environment
plain limit gage
Pollitt, Harry
preorgasmic
put ... money on
put up at a hotel
quibblings
quiet error
redoxclines
reference and control station
ringed stem
root access
Safaqis
saltcats
SCHE
science facilities
scoffings
shelled corn
single adultery
smokeasies
softly
solecist
Srednego, Proliv
street offence
subtropical species
swallows
treatment of tadiation illness
two-handleds
vendor part number
Vidal Junction
Vitis amurensis
wag one's finger at someone
winterlong
withindoors
woodcarter