态强度,抗振刚度

World Action Needed to Prevent Widespread Antibiotic Resistance Since the discovery of penicillin in 1928, we have used antibiotics against a host of infections. But now, doctors are finding that more and more bacteria are resistant to even the stron

发表于:2018-12-08 / 阅读(207) / 评论(0) 分类 VOA标准英语2015年(十二月)

Lesson 88 trap 陷入 Six men have been trapped in a mine for seventeen hours. 6个人被困在矿井里已有17个小时了。 They were trapped in cave. 他们被困在山洞里。 Due to the heavy snow,they were trapped in the house in the mountai

发表于:2018-12-08 / 阅读(854) / 评论(0) 分类 新概念英语词汇随身听手册2

San Francisco If you*re going to San Francisco, be sure to wear some flowers in your hair. If you*re going to San Francisco, you*re gonna meet some gentle people there. For those who come to San Franc

发表于:2018-12-14 / 阅读(270) / 评论(0) 分类 英文歌曲第四辑

Ever get a ringing in your ears after a loud blast of music on your iPod? Thats one example of the usually temporary condition called tinnitus, the sensation of sound even when no sound is being produced. But a new inventioncreated by high school stu

发表于:2018-12-24 / 阅读(229) / 评论(0) 分类 Scientific American(九)月

Today's podcast will be dedicated to the 'th'. English, being quite irregular at times, has two ways of pronouncing the combination of the t and the h. That may seem simple, but getting it right is a key to sounding like a native. I have met many peo

发表于:2019-01-01 / 阅读(187) / 评论(0) 分类 英语博客 A cup of English

The spokesman for the Lord's Resistance Army says Congolese forces and U.N. peacekeepers in Congo Kinshasa are preparing to move against the rebel group, which has yet to sign a peace deal to end a 20-year reign-of-terror in the region. VOA Correspo

发表于:2019-01-06 / 阅读(265) / 评论(0) 分类 VOA标准英语2008年(九月)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid

发表于:2019-01-08 / 阅读(224) / 评论(0) 分类 Scientific American(一)月

A Fish That 'Sings' Love Songs? This is the sound of a fish singing: Hmmmmmmmm. It is a male fish a plainfin midshipman, to be exact from the Pacific Ocean. He is singing, or humming, a love song to get female fish to come and visit the nest he built

发表于:2019-01-12 / 阅读(248) / 评论(0) 分类 2016年VOA慢速英语(十)月

Antibiotics Breed Drug Resistance in Pigs Pigs given low doses of antibiotics had more E. coli in their guts, and that bacteria showed an increased resistance to antibiotics, according to new research. The study confirms the routine practice of feedi

发表于:2019-01-13 / 阅读(194) / 评论(0) 分类 VOA标准英语2012年(一月)

Vidushi Sinha | Washington, DC 18 May 2010 The World Health Organization calls antibiotic resistance one of the three greatest threats to human health. Experts fear antibiotic resistance puts humans in danger of becoming nearly defenseless against so

发表于:2019-01-13 / 阅读(232) / 评论(0) 分类 VOA标准英语2010年(五)月

Kenya: Misuse of Antibiotics Leading to Resistance by Immune System NAIROBI In Kenya, the rise of drug resistant bacteria could reverse the gains made by medical science over diseases that were once treatable. Kenyans could be at risk of fatalities a

发表于:2019-01-14 / 阅读(213) / 评论(0) 分类 VOA标准英语2015年(一月)

As Assault On Mosul Looms, Resistance Grows And ISIS Grows More Brutal play pause stop mute unmute max volume 00:0003:43repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your

发表于:2019-01-17 / 阅读(204) / 评论(0) 分类 2016年NPR美国国家公共电台10月

And so on. There is a little bit of a difference there that is worth just thinking about. 等等...但即便是有些许的不同,那也值得仔细想一想。 And I remember when I was 12 years old,and I started playing tympani and percussion, an

发表于:2019-01-18 / 阅读(199) / 评论(0) 分类 TED演讲国际问题篇

Artemisinin, also known as QingHaoSu in Chinese, was discovered by Chinese scientist Tu Youyou. She received the 2015 Nobel Prize for Physiology and Medicine for the drug's discovery by her team more than three decades ago. In her speech at the Karol

发表于:2019-01-19 / 阅读(261) / 评论(0) 分类 2015CRI中国国际广播电台

We all know time is a construct, and right now, it's kept by the very precise tick of an international network of around 500 atomic clocks. 我们都知道时间是个复杂的概念。目前,世界上有一个由大约500台原子钟组成的网络,

发表于:2019-02-01 / 阅读(187) / 评论(0) 分类 阅读空间

1. Cyber Sickness 晕屏症 Also called digital motion sickness, symptoms that range from headaches to woozy feelings can occur when you quickly scroll on your smart phone or watch action-packed video on your screen. 这种病也被称为数字晕车,

发表于:2019-02-03 / 阅读(1069) / 评论(0) 分类 阅读空间

By David McAlary Washington 10 January 2007 One of the main weapons to prevent mother-to-child transmission of the AIDS virus during birth is the drug nevirapine. But when nevirapine is used alone just once, HIV starts becoming resistant to it. Rese

发表于:2019-02-04 / 阅读(224) / 评论(0) 分类 2007年VOA标准英语(一月)

Money Can't Buy It by Annie Lennox Money can't buy it... baby Sex can't buy it... baby Drugs can't buy it... baby You can't buy it... baby I believe that love alone might do these things for you I believe in love alone yeah yeah Take the power to set

发表于:2019-02-04 / 阅读(239) / 评论(0) 分类 好听的英文歌曲

Why Don't Snorers Wake Themselves Up? Anyone who's ever slept in the same room as a loud snorer knows how infuriating it is to have to suffer through all that noise while the offending party remains blissfully oblivious and asleep. Loud snorers can w

发表于:2019-02-04 / 阅读(189) / 评论(0) 分类 阅读空间

爱的反抗力 Muse - Resistance Resistance Muse Is your secret safe tonight? And are we out of sight? Or will our world come tumbling down? Will they find our hiding place? Is this our last embrace? Or will the walls start caving in? (It could be w

发表于:2019-02-05 / 阅读(199) / 评论(0) 分类 好听的英文歌曲
学英语单词
auxiliary document
biliary fistula
binder course
biphasic aerosol
bistriazoles
Bodensee, Boden See
Brissago
casible
catamenias
catering pack
census of population
chronic toxicity test
circumbilivagination
clothe
compound cavity
countermanifesto
crossed knee-jerk
customised
customs value
cytoadherence
daylight limit
definite-time lag relay
delivery by means of declaration
dialy
disestablish
divulgating
drag-cup tachogenerator
Electroejaculator
electrothermography
etchers
finger programs
fluoroscopically
focusing circle
focusing tube of camera
gustatory bulb
half-decades
HF frequency-spectrum analyser
high-salt-content liquid waste
holburne
hot-list
informed observer
initiate diagnostics
inlet
Izdebnik
koenigs
lasered
macerated
narceines
national income in market prices
nominal capacity
nucleus restiformis
off line output
orange red
oreste
orthogonal decomposition
overpeopling
partial nonresponse
percarbonic acid
petaloid anther
phagocytose
piezoelectric speaker
praetexta
pre-compilations
progesteronic
projected tolerance zone
propodolateral apophysis
pulse-temperature ratio
puma manipulator
quisquilicolous
rebraided
recongregates
reisses
revivable
Sahaptin
sahlites
sea going launch
Seagull Shoal
season-best
shift for
shonkier
Simmerath
skulking
SmartStamp
snow-fighting vehicle
softening lead
solo (surakarta)
sosera sausage
stratigraphical drilling
supporting part
tee-square
thurots
time-area-concentration diagram
treater
trichomegaly
trigeneric hybrid
turboregulator
turbulent resistivity
use-by date
Ustyuzhna
voigt profile
wessand
wick-feed oil box