滤音板

But the HEPA filter for Olivers Vibe got dirty very quickly. And, it was not cleanableit was simply replaceable. When it turned filthy brown, Oliver went back to Target to buy a new filter. Oddly, Target sold the F15 belt for the Vibe, but not the fi

发表于:2018-12-11 / 阅读(153) / 评论(0) 分类 365个英语简短小故事

When Pablo Panda Sandoval made history with 3 home runs in game one of the world series his head was probably buzzing. But when batters in chilly Detroit had the ball not quite right in the next couple of the nets, it will be their hands that buzzing

发表于:2018-12-24 / 阅读(119) / 评论(0) 分类 Scientific American(十)月

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(136) / 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(132) / 评论(0) 分类 Scientific American(五)月

So, you put the coffee into the filter and the hot water goes through the coffee, 因此,你把咖啡粉放进滤纸里并让热水经过咖啡粉, it goes out of the filter and goes into the coffee pot, pot, the coffee pot is on the bottom. 那水

发表于:2018-12-28 / 阅读(113) / 评论(0) 分类 ESL杰夫的一天

Scientists analyzed around 2,500 of those calls, and found that the second part (sound) is nearly identical in pitch every time from each whale: 16 hertz, or four octaves below middle C. And the slight variations in frequency that do exist are only a

发表于:2019-01-02 / 阅读(156) / 评论(0) 分类 60秒科学

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(186) / 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(154) / 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(191) / 评论(0) 分类 60秒科学

From VOA Learning English, this is the Health Lifestyle report. In parts of India, it is not uncommon to see people wearing a mask over their nose and mouth. The capital, New Delhi, has some of the world's dirtiest air. The pollution was a call for a

发表于:2019-01-03 / 阅读(145) / 评论(0) 分类 2018年VOA慢速英语(一)月

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(133) / 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(138) / 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(175) / 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(119) / 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(140) / 评论(0) 分类 2015年VOA慢速英语(九)月

Boston Symphony Makes Music in Mountains When Serge Koussevitzy, the Russian-born conductor of the Boston Symphony Orchestra, opened Tanglewood in 1937, he chose an all-Beethoven program, including the Pastorale Symphony. When conductor Christoph von

发表于:2019-01-13 / 阅读(117) / 评论(0) 分类 VOA标准英语2012年(七月)

By Alisha Ryu Nairobi 18 November 2009 A U.S.-flagged container ship which was hijacked by Somali pirates seven months ago has been attacked again off the coast of Somalia. Pirates were unsuccessful in their second attempt to hijack the Maersk Alaba

发表于:2019-01-14 / 阅读(154) / 评论(0) 分类 VOA标准英语2009年(十一月)

The Tiangong-2 space lab, though adopting the structure of Tiangong-1 without too many changes in appearance, has been designed to function much stronger than its predecessor. Zhu Congpeng, chief designer of the lab, says they've focused on a variety

发表于:2019-01-19 / 阅读(143) / 评论(0) 分类 2016CRI中国国际广播电台

By Tabinda Naeem Washington, D.C. 21 May 2007 Two years ago, the National Academy of Engineering established the Grainger Challenge Prize for Sustainability. This $1 million award was designed to challenge the world's scientists to develop a practica

发表于:2019-02-03 / 阅读(188) / 评论(0) 分类 2007年VOA标准英语(五月)

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(167) / 评论(0) 分类 实用英语
学英语单词
.com
accumulating conveyor
amplitude-phase
assumed state analysis
astroturfer
auxiliary projection
base hits
be alleged
blockmakers
boces
boville ernica
Canchungo
carrier avalanche
caugh
charily
cidofovir
city cluster
cyclic Chebyshev semiiteration
cyclosorus interruptus
dampings off fungus
dichlorodiethyl sulphide
diisobutyl keton
discarded product
discriminous
distance protection equipment
door butt
ductilities
elastic-plastic-creep analysis
embezzlers
essed
everbloomer
fangle
fault-finding procedure
field break-up switch
fipple flutes
four-pole generator
go on sth
grow houses
haemorrhagica polymyositis
Hattstatt
indoubted
intellectation
intra-asian
iodyrite-type
jeans wear
kataphorite (catoforite)
kreevich
kuypers
L-configuration
latherers
line of duty
line-based browser
Linguatuloidea
love teams
Lusomycin
magnesia whisker
Malacarne's pyramid
Mazanovskiy Rayon
melting plug
metaexpression
mezzograph
Mimata
muntus
naeem
Namal
naskhi
on its merits
performance management specification
phyllidia ocellata
plan of attack
polycrates
polyphase coupling system
porosity overlay
prawns salad
rear-wheel drive
recording time
reinforced concrete hollow pier
rig pig
rosoth
Saint-Amans
scrump
singular coordinates
slewing speed
spectrum-envelop of voice
spread of indication
squamous metaplasia
stepping piston
swallow
taille
temper-rolling
thistle tube
to the world
traintime
transit apron
transitory carrier
trumpet-shaped
ventral mesogastrium
wandering nucleus
warting
wasted cycle
wynn
yellow brown soil