飞溅阻力

With a strong poison spray aimed at a bunch of flying insects, it's easy to imagine several of them falling together at the same time. Because flies are small and dirty creatures, we do not much care if many die at once. However, when it comes to hum

发表于:2018-12-07 / 阅读(220) / 评论(0) 分类 大千世界

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(148) / 评论(0) 分类 VOA标准英语2015年(十二月)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The plague is most famous for killing tens of millions of people all over Europe in the 1300s. Plague is caused by the bacteria Yersinia pestis. And th

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 Scientific American(八)月

[00:02.94] 理发 [00:05.88]A: Hello,sir.I'm ready for you. [00:08.56]A: 先生,您好。该你了。 [00:11.23]B: Is it my turn? [00:12.85]B: 该我了吗? [00:14.47]A: Yes,please sit on the chair.How do you want to have your hair cut? [00:17.70

发表于:2018-12-25 / 阅读(127) / 评论(0) 分类 英语流行口语

No. 25 Clean the Bathroom 清洁洗手间 Practice Listen and Repeat A 1. Put down a clean bath mat. 铺下干净的浴缸防滑垫。 2. When youre finished cleaning, hang cleaning towels. 当你清洗完成,挂上干净的毛巾。 Conversation 1

发表于:2018-12-25 / 阅读(150) / 评论(0) 分类 快口说英语

Bar Bet 酒吧的赌博 A guy walks into a bar, stopping to talk to everyone in the bar. As he finishes with each group of people, they all get up and leave and go stand outside the window, looking in. 一个家伙走进酒吧,和里面每个人耳语

发表于:2018-12-31 / 阅读(151) / 评论(0) 分类 英语小达人

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(198) / 评论(0) 分类 VOA标准英语2008年(九月)

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(201) / 评论(0) 分类 Scientific American(九)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(136) / 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(180) / 评论(0) 分类 VOA标准英语2010年(五)月

Spray Detects Hard-to-Find Tumors Surgeons may soon have a new tool to help locate early-stage cancerous growths; a spray that turns fluorescent green when it comes into contact with tumors. The spray is clear, but contains a non-toxic dye that almos

发表于:2019-01-13 / 阅读(164) / 评论(0) 分类 VOA标准英语2011年(十一月)

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(164) / 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(148) / 评论(0) 分类 2016年NPR美国国家公共电台10月

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(207) / 评论(0) 分类 2015CRI中国国际广播电台

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(166) / 评论(0) 分类 2007年VOA标准英语(一月)

My fingers feel as though theyve got frostbite, an abandoned spray can lies on the table and most of my kitchen appears to be dusted in a light frosting of silver. 我的手指好像得了冻疮,一个喷雾器扔在桌上,厨房的大片区域看起

发表于:2019-02-05 / 阅读(163) / 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(131) / 评论(0) 分类 好听的英文歌曲

世博会开幕这几天一直高温不下,仅5月1、2日两天世博园区救护车出动就达到80多次,其中接诊的26个人是中暑。中暑的英文怎么说呢?大家都知道stroke,中风,而中暑就是heat stroke。 那么,中

发表于:2019-02-09 / 阅读(160) / 评论(0) 分类 英语口语

Sexual harassment is not uncommon on the metro in China. There has been an outcry in China after one city banned metro passengers from carrying self-defence products often used by women. 性骚扰在中国的地铁里并不少见。近日,一城市宣

发表于:2019-02-18 / 阅读(111) / 评论(0) 分类 英语新闻

35 dollars for peanut butter? I got 1.23 dollar Jiffy inside. 破花生酱要收我35美元 我家有1.23美元的杰菲花生酱 Then he tells me it's 75 dollars per possum that he removes. 没除掉一只负鼠要收我75美元 Where are you taking

发表于:2019-03-04 / 阅读(154) / 评论(0) 分类 柯南脱口秀
学英语单词
Abel Tasman Nat.Park
abortorium
acceptance of the bid
accident death insurance
adrenomimetic
anomalistically
arthrometers
black leprosy
bony ridges
burgeries
cause beyond control
coapplying
coarse azimuth
cobalt-cemented tungsten carbide
colier
covered over
crystal chemistry of organic compound
datednesses
deep loading vehicle
electron beam welding plant under atmosphere
equity share
Equus kiang
euonymus verrucosoides var. pauciflorus (maxim.) regel
exponential lag
fascimile signature
fat-splitting process
ferrophosphorus
fine (grinding) sugar
flamboyant coating
Flavobacterium orchitidis
gate hook
genus muntingias
guided missile counter-measure
hacian
have much ado in doing sth
heliomophic
hexadecimal conversion table
high lateral wall myocardial infarction
hirabayashi
insulator flap castings
internet explorer administration kit
invigilating
irresemblance
kinshasha
klinometer
knock sb for a goal
kolypeptic
larra fenchihuensis
Lycoris caldwellii
marblefish
mence
Michelia aenea
millions
Miramant
mishev
moon-like
mousseron
multiple midstop
nalmexone
nightclubber
nonphaseinverting
norton de matos (balombo)
OCRing
octolasmis angulata
Osler disease
parambulacral seta
paramorph
Pavino
physiologically
pinasters
pitted element
PMS
portable electric saw
potassium borate
pressure-velocity compounded turbine
primary breccia
pritchel hole
prostate gland (or prostate)
Quincey
resistance moment
right of complaint
rumply
Sargent curve
scurril,scurrile
sea gooseberries
sediment measurement
slip off the tongue
split horizontal in
spoutest
st anthony's fire
subturbinate
swarmeth
target recuperability
Thanbayagon
thielavia terricola
transient acceleration
typewriter cloth
vapor honing
warm end temperature difference
wellhead pressure
wrongtaken