[化] 1,2,3,4-萘四酮

[00:02.28]Dads Mandolin [00:06.89]My father was a self-taught mandolin player. [00:11.14]He was one of the best string instrument players in our town. [00:14.84]He could not read music, but if he heard a tune a few times, [00:19.17]he could play it.

发表于:2018-11-30 / 阅读(238) / 评论(0) 分类 英语专业晨读美文

nobody likes getting shots, but what if you could make the needles so tiny that they broke skin painlessly. engineers from top university have created such micro needles, made from major protein in silk, fibrolin. the work is in the journal of advanc

发表于:2018-12-02 / 阅读(154) / 评论(0) 分类 Scientific American(十二)月

My father was a self-taught mandolin player. He was one of the best string instrument players in our town. He could not read music, but if he heard a tune a few times, he could play it. When he was yo

发表于:2018-12-07 / 阅读(393) / 评论(0) 分类 英语精美散文22篇

From VOA Learning English, this is the Health Lifestyle report. When trying to make a successful career, which is better: being a generalist or a specialist? In other words, should you generalize and know a little about a lot of things? Or should you

发表于:2018-12-08 / 阅读(119) / 评论(0) 分类 2018年VOA慢速英语(十)月

Scientists Discover New Animal 科学家发现新的物种 From VOA Learning English, this is SCIENCE IN THE NEWS. Im June Simms. And Im Bob Doughty. Today we tell about a new animal species native to South America. We tell how agricultural chemical

发表于:2018-12-16 / 阅读(92) / 评论(0) 分类 2013年VOA慢速英语(八)月

Could a Tattoo Cost You a Job? 文身会让你失去工作么? In the 1960s U.S., a tattoo was usually a sign of anti-social or illegal activity. Few people had them. Today, at least one in five Americans has a tattoo, including sports stars, actors

发表于:2018-12-16 / 阅读(131) / 评论(0) 分类 2015年VOA慢速英语(六)月

Man Hopes to Define Every English Word with a Limerick There are many different methods for studying languages and learning new words. One man has come up with his own unusual way to define the meanings of words - through rhyming. He uses words that

发表于:2018-12-19 / 阅读(137) / 评论(0) 分类 2018年VOA慢速英语(三)月

24 MR. AND MRS. ANTOLINI had this very swanky apartment over on Sutton Place, with two steps that you go down to get in the living room, and a bar and all. I'd been there quite a few times, because after I left Elkton Hills Mr. Antolini came up to ou

发表于:2018-12-31 / 阅读(174) / 评论(0) 分类 有声英语文学名著

23 I MADE IT very snappy on the phone because I was afraid my parents would barge in on me right in the middle of it. They didn't, though. Mr. Antolini was very nice. He said I could come right over if I wanted to. I think I probably woke he and his

发表于:2018-12-31 / 阅读(134) / 评论(0) 分类 有声英语文学名著

An ass and an ox,fastened to the same yoke,were draging a waggon.While the ox was pulling with all his might he he broke a horn.The ass swore that he had got no help whatever from his weak companion.Exerting himself in the labour,the ox b

发表于:2019-01-09 / 阅读(218) / 评论(0) 分类 趣味英语

AS IT IS 2014-02-10 What Engineers Do, and How They Learn 工程师们是怎样炼成的,他们平时都做些什么 Hello, and welcome to As It Is from VOA Learning English. Im Christopher Cruise in Washington. Today on the program, we explore the c

发表于:2019-01-12 / 阅读(134) / 评论(0) 分类 2014年VOA慢速英语(二)月

Painting Captures Moments after Lincoln's Assassination 画家用绘画捕捉林肯遇刺时刻 A rare painting showing the moments after U.S. President Abraham Lincoln was assassinated has been cleaned, repaired and restored. The oil painting is nam

发表于:2019-01-12 / 阅读(119) / 评论(0) 分类 2016年VOA慢速英语(五)月

Jonah Hex. Are these the boys you wanted? You surely have done us quite a favor. A transaction is all it was. I'll collect my hundred dollar bounty on them and be on my way. From Superman and Spider Man to Josie and the Pussycats, Hollywood has a lon

发表于:2019-01-13 / 阅读(151) / 评论(0) 分类 VOA标准英语2010年(六)月

SCOTT SIMON, HOST: The fires in Northern California have reminded many Americans of the courage, the heroism of the men and women who fight fires in forests and wilderness. A film called Only The Brave is based on the true story of the 19 Granite Mou

发表于:2019-01-16 / 阅读(104) / 评论(0) 分类 2017年NPR美国国家公共电台10月

LONDON, Aug. 9 (Xinhua) -- Chen Ruolin collected a high 422.30 points for the title of women's 10m platform diving at London Olympic Games on Thursday. It is the 200th gold medal China won from all the summer Olympic Games it participated in. Brittan

发表于:2019-02-07 / 阅读(131) / 评论(0) 分类 英语新闻

地点:莫妮卡与钱德勒的婚礼现场 人物:莫妮卡,钱德勒,菲比,瑞秋 事件:婚礼仪式结束后,摄像师为大家拍照留念,菲比为了掩护瑞秋,谎称自己怀孕了。 Monica: What are you talking about? P

发表于:2019-02-16 / 阅读(169) / 评论(0) 分类 英语PK台

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发表于:2019-03-02 / 阅读(201) / 评论(0) 分类 加州英语分级GK

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发表于:2019-03-02 / 阅读(184) / 评论(0) 分类 加州英语分级GK

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发表于:2019-03-02 / 阅读(202) / 评论(0) 分类 加州英语分级GK

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发表于:2019-03-02 / 阅读(214) / 评论(0) 分类 加州英语分级GK
学英语单词
adam (automatic data application and maintenance)
aircraft wake
akhenatens
all interests
all-round mechanization
anti-white
antimicrobial spectrum
bile duct disease
birostrate
bottle thermometer
bumfucks
catapress
ccups
Chief Sustainability Officer
choiceness
chromaffinoblastoma
corn tong
ctla
daidzein
data of printing
deer ked
Dendropanax bilocularis
deputed
deuterythrous
digital control lathes
diplanetic
drag-over mill
Dubnany
durie
dust-covers
ears are burning
electric bench grinder
Exogoninae
export crops
exposure to radiation
fast talk
gear towards
gene hypothesis
general purpose analogue computer
granulitization
Guanta
hapax legomenons
heat sink effect
Ibn Gabirol
inter-subjectivity
Ireis
Jan Mayen Bank
journal box spring guide post
local network management function
Ludlul bel nemeqi
Marcenais
mechanical scribing
mercia
metallized paper capacitor for elecetrical fan
military ceremonies
needle-beam underpinning
neolitsea ferruginea merr.
net assets value
occipitotemporal branch
olivary fasciculi
Ouli
overselectivity
Pectobonthridia
pes pedunculi
petticoatism
Picea complanata
pricers
private libraries
profit growth
Prognos
pursive
pyrobetulin
rerattle
respiration chromogen
reweler
road membrane
screen sickness
service box
sonar echo sounder set
Star of India
steidinger
stereo-magnifier
sulzer
taist
Tajik Persian
tamaro
theory of retribution
TIS (test instrumentation system)
total chlorine residue
total food chain
two-pagest
UK Intellectual Property Office
Umbellularia
umnoes
undefeated
unsheathe
unslip
upper wash slope
voltage-feed antenna
work sth off
Yprois
zaluar