隔声[降声]因数,隔声量

This is Scientific American's 60-second Science. I'm Steve Mirsky. Got a minute? Can you name those notes? Probably not. Perhaps one in ten thousand speakers of European languages has perfect pitch - the ability to recognize a note without having hea

发表于:2018-12-24 / 阅读(194) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. If you ever got picked on in the schoolyard, you might have wished for some sort of superpower, like unbeatable speed or maybe just the ability to completely disappear. Now scientists

发表于:2018-12-24 / 阅读(189) / 评论(0) 分类 Scientific American(五)月

Hybrid cars are good for the environment. But scientists say that they might be bad for pedestrians. Because hybrids are so quiet, it can be hard for walkers to hear them until its too late. Listen to this. [quiet car sound] Thats a Toyota Prius mov

发表于:2019-01-02 / 阅读(233) / 评论(0) 分类 60秒科学

Can you name those notes? Probably notperhaps one in 10,000 speakers of European languages has perfect pitch, the ability to recognize a note without having heard any reference note first. But theres a much better chance you could successfully name

发表于:2019-01-02 / 阅读(207) / 评论(0) 分类 60秒科学

If you ever got picked on in the schoolyard, you might have wished for some sort of superpower: like unbeatable speed or maybe just the ability to completely disappear. Now scientists at the College of Wooster in Ohio say that you might have had a s

发表于:2019-01-02 / 阅读(253) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Every year, scores of manatees are killed by boats in Floridas waters. Their plight is an ecological concern. And everyone from marine biologists to Marg

发表于:2019-01-08 / 阅读(188) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Hybrid cars are good for the environment, but scientists say that they might be bad for pedestrians. Because hybrids are so quiet that can be hard for wa

发表于:2019-01-08 / 阅读(184) / 评论(0) 分类 Scientific American(五)月

We humans are pretty good at communicating with sounds other than words. But how much of this is hard-wired, and how much do we pick up from others? To find out, researchers recorded the nonverbal sounds of people born deaf, as they responded to a ra

发表于:2019-01-08 / 阅读(258) / 评论(0) 分类 Scientific American(十一)月

Blue whales off the California coast make calls that, sped up 10 times, sound like (sound of two-part call). The original is a wall-rattling frequency too low for us to hear. Scientists analyzed around 2,500 of those calls, and found that the second

发表于:2019-01-08 / 阅读(169) / 评论(0) 分类 Scientific American(八)月

Country Music Ladies Put Men in Their Place American country music lyrics often describe women as they might appear in mens dreams. This is especially true of songs by many male artists. But the songs by Maddie Marlow and Tae Dye are different. The t

发表于:2019-01-12 / 阅读(196) / 评论(0) 分类 2015年VOA慢速英语(九)月

白领英语晨读-131 Reduction of Your Tension 减轻压力

发表于:2019-01-17 / 阅读(196) / 评论(0) 分类 白领英语晨读

(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g. The hydrogen atom is near1y l6 times as

发表于:2019-01-17 / 阅读(193) / 评论(0) 分类 英语口译

英语中表示倍数减少的表达方法(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g

发表于:2019-01-17 / 阅读(180) / 评论(0) 分类 英语口译

WASHINGTON President Barack Obama met with the U.S. Congress top Republican, House of Representatives Speaker John Boehner on Sunday in search of a deficit-reduction package that would prevent substantial spending cuts and tax increases from going in

发表于:2019-01-19 / 阅读(195) / 评论(0) 分类 英语新闻

BEIJING, July 25 (Xinhua) -- The Chinese government said Wednesday that it will expand the pilot reform of replacing turnover tax with value-added tax (VAT) to 10 more provinces and cities from August 1 this year as part of the country's efforts in s

发表于:2019-01-19 / 阅读(197) / 评论(0) 分类 英语新闻

今天我们要学的词是WOW factor。 A WOW factor, 指让人惊叹的东西。经济不景气,也影响到了玩具行业。从二月中旬开幕的美国国际玩具展可以看出, In 2009, there will still be toys with the WOW factor, but

发表于:2019-01-30 / 阅读(212) / 评论(0) 分类 英语单词荟萃

通知与确认 Acknowledgments Confirmations 通知对方接到来信Acknowledging receipt of letters1. Dear Mr/Ms,Thank you for your letter No. A-3 of 6th May, offeringus 6 UI-4 Viewdatas. We have passed it on to ourTechnical Department for their c

发表于:2019-02-06 / 阅读(218) / 评论(0) 分类 实用英语

Obama calls for debt reduction in balanced manner WASHINGTON, Nov. 9 (Xinhua) -- The United States should cut its mounting public debt in a balanced manner with a plan including both government spending cuts and revenue increases, U.S. President Bara

发表于:2019-02-07 / 阅读(182) / 评论(0) 分类 英语新闻

Now for more analysis, let's bring in Tang Min, Counsellor at the State Council, and our senior reporter Xu Zhaoqun. Welcome, both of you, to our discussion. Q1: Let me start with you Xu Zhaoqun. You've been to a lot of villages in poor regions, and

发表于:2019-02-18 / 阅读(194) / 评论(0) 分类 cctv9英语新闻2016年

Jo: This is Real English from BBC Learning English. Im Jo. Jean: And Im Jean. Jo: Today were going to look at words and phrases that have recently become part of the English language. Jean: 在我们的《地道英语》节目当中,我们会带领大家一起来学习和熟

发表于:2019-02-26 / 阅读(500) / 评论(0) 分类 地道英语在线听
学英语单词
a one night stand
acidi lactici sphaerococcus
alternaria nelumbii (ellis et everhart)enlows et rand
Amphistegina
Anemone yulongshanica
anthelme
ar-are
Balfour, Francis
battery cover
be recognized by their characteristic shape
blight wood
bolivianite
brachystegia speciformiss
Breughel
Bursa trochanterica musculi glutei minimi
Cannabidaceae
ceo
certificate serial number
Ch'angp'yǒng
chain and bucket elevator
come in from
computer practice
comquest
cross reference program
crow-eaters
dalgleishes
deride as
do-se-do
Donnellson
Dutch auctions
electrochemistry of semiconductors
expenditure approach
file shared
foresignified
Franklin spectacles
gallocyanin
general clearing member
geometric geodesy
get into
grazing system
Helkesimastix
hyperacute rejection
hypodermic needles
intransitivenesses
ipurolic acid
ISDN router
lilial
line crawl
Lodopine
medical community
methylcellulosesupplemented
metric topology
Money begets
NeuralCast Technology
New York Mills
non-excitable
non-type
oil residues
optical protection layer
optical warning sign
peachier
phrase structure grammar
piloting
postbacillar eye
Pseudocheiridae
recarding
replacement injection
retrodicted
Rhabdospora
ride rate
Saussurea longifolia
scribed line
Seismic Research Observatory
self-sacrifice
semi-rational
sensor threshold
sent back
smashmouth
society for research on adolescence (sra)
SONLS
Sorghum sudanense
sound ... out
spacefiller
spiral arms
static function
stromatactoids
super minicomputer
swather
T.M.O.
tein
thermal-convection loop
to prohibit
to rise to the occasion
unconceding
undercovering
unhardened candy
unprotestantizes
unsecretive
Wakayama-ken
wentzville
wyelfoyle
zeptoseconds