[电] 声能折射

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If youve ever popped open a jar of the pickled fish, you know that herring like to stick together. Actually, its something they do naturally, even before

发表于:2018-12-24 / 阅读(161) / 评论(0) 分类 Scientific American(三)月

The Blurry World Underwater When you open your eyes underwater, things look blurry, but with goggles, everything looks perfectly clear. Why cant we landlubbers focus underwater without goggles? First, we need to explore how our eyes focus when were h

发表于:2018-12-31 / 阅读(123) / 评论(0) 分类 英语听力文摘 English Digest

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. In theory, scientists could learn a lot about our health by testing tiny amounts of bodily fluidsa drop of blood, a tear, a bead of sweat. But somethin

发表于:2019-01-08 / 阅读(138) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. When Harry Potter slips underneath his invisibility cloak, he can wander freely undetected, but what about a cloak of silence, one that completely deaden

发表于:2019-01-08 / 阅读(150) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. Seismologists spend a lot of time listening to the earth. Ocean acoustic monitors have been providing information on the earths vibrations since the 1930

发表于:2019-01-08 / 阅读(141) / 评论(0) 分类 Scientific American(六)月

Venice's Church of the Most Holy Redeemer has held a musical celebration every year since its construction in 1592. And recently, the church has inspired debate among historians: How could its echoing chambers clearly portray the complicated music pe

发表于:2019-01-08 / 阅读(153) / 评论(0) 分类 Scientific American(十一)月

This is Scientific Americans 60-Second Science.I'm Cynthia Graber . This will just take a minute. (Chirping sound.) That may not sound likemuchbut its the loudest animal in the world. For its size, that is. Theinsect called the water boatman is two m

发表于:2019-01-08 / 阅读(140) / 评论(0) 分类 Scientific American(七)月

The number of US households in some stage of foreclosure took another bump-up in July. The group RealtyTrac which maintains an extensive database of foreclosure activity nationwide says foreclosure filings last month were up 7% from the previous mon

发表于:2019-01-08 / 阅读(152) / 评论(0) 分类 2009年NPR美国国家公共电台8月

What Does the Multimedia Actually Mean? Literally, multimedia means TWO or more media. If the publisher of this book Wanted to join the Current hype about multimedia, he could advertise the book as using multimedia technology. After all, it contains

发表于:2019-01-08 / 阅读(143) / 评论(0) 分类 英语阅读理解

Lindsey KaneYou'll be whole to the one in the corner i got something to say you have never been alone know not even a day and i know that you feel a hope is gone away lost and fogot it and things take it away~~ but you wanna always be this way so you

发表于:2019-01-09 / 阅读(110) / 评论(0) 分类 好听的英文歌曲

One man's home is another man's journey Stars shine late and the sun shines early One man's straight and another man's curly It's just the way it goes One man's trash is another man's treasure Rummaging around in the rain in the weather One man's pai

发表于:2019-01-11 / 阅读(122) / 评论(0) 分类 美国乡村音乐

Well there's so much turning still Watching the fireflies drown Set fire to the sails Laughing as the boat goes down Well eyes tell a thousand tales I've been chasing my own one around Got a coffin with a thousand nails And we hammer this last one do

发表于:2019-01-11 / 阅读(86) / 评论(0) 分类 美国乡村音乐

Screams Have Special Place in Brain 尖叫声在大脑中会有特殊的位置 From VOA Learning English, this is the Health Lifestyle report. Have you ever thought about screaming? A blood-curdling scream is a natural reaction to sudden, extreme fri

发表于:2019-01-12 / 阅读(118) / 评论(0) 分类 2015年VOA慢速英语(八)月

By Doug Levine Washington 27 June 2007 It's been more than 15 years since saxophonist Joshua Redman won first prize at the Thelonious Monk International Jazz Competition. That honor proved to be a worthwhile stepping stone, as he went on to record mo

发表于:2019-01-13 / 阅读(156) / 评论(0) 分类 2007年VOA标准英语(六月)

Chris Hillman Edward Pederson's At Edwards BarnChris Hillman and Herb Pedersen had bluegrass in common when they met as teenagers in Los Angeles back in the early '60s, but the two didn't make much music together until years later. Hillman first came

发表于:2019-01-13 / 阅读(117) / 评论(0) 分类 VOA标准英语2010年(十二)月

LOURDES GARCIA-NAVARRO, HOST: If you're familiar with the band Disturbed, you're probably used to hearing them sound like this. (SOUNDBITE OF DISTURBED SONG, INSIDE THE FIRE) GARCIA-NAVARRO: But last year, the band softened its sound when they covere

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1月

As 2014 draws to a close, its time to look back and see which words have been significant throughout the past twelve months, and to announce the Oxford Dictionaries Word of the Year. Without further ado, we can exclusively reveal that the Oxford Dict

发表于:2019-02-04 / 阅读(110) / 评论(0) 分类 英语新闻

Abadie's Sign Chinese阿巴迪征(跟腱受压无感觉,见于脊髓痨) Abaptiston Chinese安全开颅圆锯 abarognosis Chinese压觉缺失 abasia astasia Chinese立行不能 abasia Chinese步行不能 abdominal reflex Chinese腹壁反射 abduction Chinese外展 abiotrophy Chinese生活力

发表于:2019-02-07 / 阅读(141) / 评论(0) 分类 英文语法词汇

So what really happened? Hertzfeld asked. Is it really as bad as it looks? 到底发生了什么?赫茨菲尔德问道,真的有这么糟吗? No, it's worse. Jobs grimaced. It's much worse than you can imagine. 不,更糟,乔布斯一副愁眉

发表于:2019-02-15 / 阅读(116) / 评论(0) 分类 乔布斯传

The Way It Goes (Acoustic) - Passenger One man's home is another man's journey Stars shine late and the sun shines early One man's straight and another man's curly It's just the way it goes One man's trash is another man's treasure Rummaging around i

发表于:2019-02-18 / 阅读(121) / 评论(0) 分类 英文摇滚歌曲
学英语单词
Angara River
anti-dust
assignable letter of credit
atto-watt
atypical adenoma of thyroid gland
backward processing
band line printer
beaux-art
blind reader
block contact
bogbeans
bull of the bog
calcium butyrate
casing top half
chroma luminance
colourism
comedian
compressed air pump
corner casting
crossbowers
cycle per second
cytoforms
debateable
Del Rio
diethylene ether
dip process
dolophine hydrochloride
e-mentees
ebert ion-counter
ecumenopolis
efficient departmentalization
egocentrisms
enkianthus quinqueflorus lour.
f-scale
fitting pipe
foul a plate with
fringed gentian
gaol-fever
guarantor's relationship to insured
houheres
howsoe'er
intron homing
iron lungs
jackpot
jodee
join the crowd
jugo-maxillary
Kantō-sanchi
Khachaturian Seamount
kuometers
Kurdish language
Leptosiphonium
Lugh Ganane
Mc Fashion
McCarthyesque
meat-nitro aniline
minelayer
Morus rubra
New Zealand hemp seed
odontotenaculu
paddling
pericemental abscess
plant security forces
Platycodon grandiflorum A. DC.
plungest
Populus purdomii
principates
propagation delay
put-through deal
radiotelex letter
railway construction clearance
reference order
reflight
rehospitalises
sangiorgio
Savastepe
sawblade maintenance equipment
scintigra
secobarbital
securities analyst
solidago multiradiatas
Soubo
SPC automatic message switching equipment
subfab
suleiman.
systematic random sampling
tactical reconnaissance
tapless
the awkward age
third-choice
to make up
toad venom antitoxin
training collar
tuner performance
underground mill
underspends
unified messaging
urobilins
weak depression
welding rectifier power source
woodmaster
worses