双螺距螺旋(螺距等于直径的两倍)

Exercise 1-1: Rubber Band Practice with Nonsense Syllables Take a rubber band and hold it with your two thumbs. Every time you want to stress a word by changing pitch, pull on the rubber band. Stretch it out gently, don't jerk it sharply. Make a loop

发表于:2018-12-03 / 阅读(162) / 评论(0) 分类 2015年ESL之商务英语

In this Business English Podcast, were going to look at delivering an elevator pitch. A sales pitch is a presentation designed to introduce a product or service in order to convince people to buy it. An elevator pitch is a very short presentation des

发表于:2018-12-05 / 阅读(301) / 评论(0) 分类 商务英语演讲课

attenuate v.变薄,变弱 attest v.证明 attic n.阁楼,顶楼 attire v.穿着,装扮 n.衣服 attorney n.律师 attribute n.属性,品质,v.把归于 attribution n.归属 attrition n.消磨,磨损 at

发表于:2018-12-08 / 阅读(141) / 评论(0) 分类 GRE英语

A band of clouds stretching from southern Queensland through to New South Wales will bring stormy showers. Patchy cloud over South Australia, New South Wales, Victoria and Tasmania will generate scattered showers. Some isolated showers about the Quee

发表于:2018-12-11 / 阅读(113) / 评论(0) 分类 澳洲ABC新闻快递2011年

Idiom: Make a pitch ( make a proposal ) Hit the book: Veterinarian Drowning Scary Yell Labrador Retriever Kangaroo Sanctuary

发表于:2018-12-27 / 阅读(181) / 评论(0) 分类 趣味青春英语

Lesson 17 Life Beyond Injury 走出伤痛的生活 Words: atrophy n. 萎缩 attach vt. 系,缚 attachment n. 依恋,喜欢;连接物;附件 attain vt. 到达,获得 attend vt. 参加;入学;照顾 attendant n. 侍者,护理人员;adj. 伴随的 attire n. 穿着,装饰(正规服装总称

发表于:2018-12-30 / 阅读(124) / 评论(0) 分类 胡敏托福词汇记单词

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(172) / 评论(0) 分类 60秒科学

By Elizabeth Lee Washington 23 September 2009 Libyan leader Moammar Gadhafi addresses the general debate of the 64th session of the U.N. General Assembly, in New York, 23 Sep 2009 Libyan leader is in New York and spoke at the United Nations General

发表于:2019-01-13 / 阅读(135) / 评论(0) 分类 VOA标准英语2009年(九月)

Guitarist Tom Principato has been a mainstay on the Washington, D.C. blues scene for more than 40 years. Tom's new CD was inspired by family, friends and collaborators who helped shape his life on and off the stage. Like many kids growing up in the 1

发表于:2019-01-14 / 阅读(157) / 评论(0) 分类 VOA标准英语2011年(二月)

Summit Showcases Initiatives to Alleviate Power Shortages in Africa Investors and power developers from around the world gathered in Washington last week to push ideas and efforts to alleviate the shortages of electricity that plague many African cou

发表于:2019-01-14 / 阅读(123) / 评论(0) 分类 VOA标准英语2016年(二月)

Double, Double play pause stop mute unmute max volume 00:0005:28repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin. OPHIRA EISENBERG, HOST: Now it's time to

发表于:2019-01-17 / 阅读(168) / 评论(0) 分类 2016年NPR美国国家公共电台10月

【俚语】 pitch in 一起帮忙,作出贡献 最常见得意思是一起帮忙,做出贡献(to join in and help someone with something). 注意:pitch in还有其他的意思: 1.分担共同担负的费用;捐献(某物);(以某物)支援:

发表于:2019-01-17 / 阅读(149) / 评论(0) 分类 英语俚语天天说

Meanwhile, as the sun got progressively higher, it lit up the watery mass more and more. The seafloor changed little by little. 太阳陆续上升,照得水底更加明亮了地下也渐渐起变化。 Its fine-grained sand was followed by a genuin

发表于:2019-01-27 / 阅读(154) / 评论(0) 分类 《海底两万里》中英双语有声读物

We might think perfect pitch is an innate talent. Well, a study in the American Journal of Human Genetics is providing some evidence for that. Perfect pitch, aka absolute pitch, is the rare ability to name or recreate musical notes like A or middle

发表于:2019-01-30 / 阅读(196) / 评论(0) 分类 60秒科学

Abrupt junction 突变结 Accelerated testing 加速实验 Acceptor 受主 Acceptor atom 受主原子 Accumulation 积累、堆积 Accumulating contact 积累接触 Accumulation region 积累区 Accum

发表于:2019-02-05 / 阅读(168) / 评论(0) 分类 实用英语

今天我们要学的词是pitch。Pitch可以是推销的意思,既可以作名词也可以作动词。At the World Economic Forum in Davos, Russia's Prime Minister Dmitry Medvedev made a strong pitch for foreign investment in Russia. 在达沃斯世

发表于:2019-02-06 / 阅读(136) / 评论(0) 分类 英语单词荟萃

vibration 振动 sound 音 tone 音(乐音) musical tone 乐音 noise 噪音 acoustics 声学 psychoacoustics 心理声学 frequency 频率 intensity 强度 time 时间 wave form 波形 pitch 音高 loudness 响度 duration 时值 timbre 音色 (tone

发表于:2019-02-07 / 阅读(141) / 评论(0) 分类 英语口译

vibration 振动 sound 音 tone 音(乐音) musical tone 乐音 noise 噪音 acoustics 声学 psychoacoustics 心理声学 frequency 频率 intensity 强度 time 时间 wave form 波形 pitch 音高 loudness 响度 duration 时值 timbre 音色 (tone

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

今天介绍的俚语是pitch in,pitch in是什么意思呢?最常见得意思是一起帮忙,做出贡献(to join in and help someone with something). 例句: If you could pitch in a little we'd be finished quicker. 如果你能帮忙一下,

发表于:2019-02-09 / 阅读(171) / 评论(0) 分类 美国俚语

Nevertheless, the old sea-traditions, the immemorial credulities, popularly invested this old Manxman with preternatural powers of discernment. So that no white sailor seriously contradicted him when he said that if ever Captain Ahab should be tranqu

发表于:2019-03-10 / 阅读(207) / 评论(0) 分类 白鲸记
学英语单词
.uu
2-chloro-4-nitrophenol
A burnt child dreads the fire.
afterfeel
alaph
alkali treatment
anchored retaining wall by tie rods
Androsace ovczinnikovii
ANOPLOGASTROIDEA
apex seal
Ban Khoum
barystrontianite
Bessa Monteiro
bread puddings
bset
calio
center timing station
chalybeate water
character address
chiacked
co-unite
combination tanned leather
comparative monadic test
compartmentation of air cushion
conduit outlet box
continuously regulated transmission
corn-market
cost accountants
crave
cresceleration
curable
dionysius of halicarnassus
econ
epicatechin
equicontinuous
evacuate
exocentrus seriatomaculatus
exponentialities
gastrodia confusoides
gee-gee
go to sb's head
gockleys
gudgeon pin circlip
helical polarization
herd book cattle
high-nickel iron-base alloy
histoleucocyte
Hyperglyphe perciformis
idomeneo
Ignicoccus
ill services
investment accounts
Jethro Tull
kunoichis
kymation
Leyden jar
liquid cooled
logfile
lubricating oil filter
macromedaeus crassimanus
Marathos
metacyclic group
miking
miscalculation
mud settling pit
nonserials
off-normal dilution water flow
Ovisot
Parakmeria omeiensis
peckford
peresimycin
philonotis fontana
phosphosugars
plasmafilter
plateros brevenotus
point unit vortex
price cycle
prior endorser
projected density
pulse generator clock
purely imaginary numbers
reconoiter
root face
running in machine
scratch memory
sharyl
short crack
silver medal winner
sowls
symmetrical polyphase source
taken root
the first order moment compensator
to mow the lawn
TPCF
transfer-deadlines
transmit synchronizer
vent opening
voltage ratio of a capacitor divider
vortex spring
wadmal, wadmaal, wadmol, wadmoll
west north west
Woman's Journal