un. 圆周齿节;周节
[网络] 圆周齿距;周向节距;周围节距

With the development of science, human life has changed tremendously. People living in the 18th or 19th centuries would never imagine the advanced household appliances we are now able to enjoy. Every aspect of our lives for instance, in the field of

发表于:2018-11-28 / 阅读(295) / 评论(0) 分类 疯狂英语易背作文

Education Report - A Social Network Aims to Speed Up Progress in Science This is the VOA Special English Education Report. A few years ago, a university researcher was having problems with an experiment that involved medical imaging. His adviser and

发表于:2018-12-07 / 阅读(190) / 评论(0) 分类 2011年VOA慢速英语(四)月

[00:00.00]Module 8 IN A MUSEUM [00:07.39]UNIT 1 I'm really excited to be here. [00:12.59]1 Listen and read. Then say. [00:17.92]Thanks for bringing me to the Science Museum [00:20.03]today, Dad. [00:21.66]I'm really excited to be here. [00:24.25]Ther

发表于:2018-12-29 / 阅读(185) / 评论(0) 分类 外研社新标准初中英语九年级

1. circumference /səˈkʌmfərəns/ -- distance around a circle or rounded body; perimeter The circumference of a circle equals times the diameter. 圆周长等于与直径的乘积。 2. circumlocution /ˌsɜ:kəmləʊˈkju:ʃən/ -- roundabout way

发表于:2018-12-30 / 阅读(173) / 评论(0) 分类 突破英文词汇

Charles is a lonely young man and Amy is a crippled girl on a wheelchair. They meet, get to know each other and begin going out together. Charles falls in love with Amy and hopes to be the only chairpusher in her life. But Amy prefers independence t

发表于:2019-01-01 / 阅读(155) / 评论(0) 分类 英语散文阅读

Jason Lewis pedals his boat up the river Thames After 13 years and 46,000 miles (75,00km) a British adventurer has completed a round-the-world journey using human power alone. Jason Lewis, 40, crossed five continents, two oceans and a sea to become

发表于:2019-01-02 / 阅读(244) / 评论(0) 分类 Take Away English

Education Report - A Living Science Exhibit Grows at a Museum This is the VOA Special English Education Report. Outdoors, in the open air, seems like a natural place to study natural science. It also makes sense in a place like Southern California wh

发表于:2019-01-12 / 阅读(244) / 评论(0) 分类 2012年VOA慢速英语(六)月

By Delia Robertson Johannesburg 25 April 2006 In South Africa a conference on the development of microbicides to combat the spread of HIV, the virus that causes AIDS, is underway. More than 1300 scien

发表于:2019-01-13 / 阅读(229) / 评论(0) 分类 2006年VOA标准英语(四月)

MRI-like Scan May Help Identify Alzheimer's Alzheimer's disease normally gets a definitive diagnosis only after the patient dies, and an autopsy finds certain distinctive structures in the brain. Recently, though, scientists have been seeking some so

发表于:2019-01-14 / 阅读(175) / 评论(0) 分类 VOA标准英语2011年(八月)

Jess: Right, Tom, tell me, what three things could you not live without? Tom: Well, I guess you say me playing with my new toy just now. It's my iPod touch and it is fantastic. I often take long bus journeys at the weekend and on this little electron

发表于:2019-01-28 / 阅读(171) / 评论(0) 分类 原版英语对话1000个

A: Hello. You've reached Albert. B: I'm Jack. Are you still interested in renting a room? A: Yes, very much so. B: Would it be all right if I asked you some questions? A: Fire away. B: I just want to make sure that we are compatible. A: That's a good

发表于:2019-01-31 / 阅读(230) / 评论(0) 分类 地道英语对话-租房

A: Hello, this is Albert. B: Hi. I'm Jack. You called about the room for rent. Are you still interested? A: Yes, I am. B: I was wondering if I could ask you a couple of questions. A: Shoot. B: I just want to be sure that we get along. A: I agree with

发表于:2019-01-31 / 阅读(213) / 评论(0) 分类 地道英语对话-租房

By Mike O'Sullivan Los Angeles 14 February 2006 Hollywood's motion picture academy honored nominees for the Oscars Monday, as the countdown gets under way for the annual film awards. A luncheon gave n

发表于:2019-02-03 / 阅读(258) / 评论(0) 分类 2006年VOA标准英语(二月)

A: Hello, Albert speaking. B: This is Jack. Are you still interested in renting a room? A: Oh, yes. B: Would you mind answering a couple of questions? A: No problem. B: Since we might be roommates, I want to make sure there's no friction. A: You are

发表于:2019-02-05 / 阅读(256) / 评论(0) 分类 地道英语对话-租房

A: Hi, this is Albert. B: Hi, my name is Jack. You called about a room for rent. Are you still interested? A: Yes, more than you know. B: I don't mean to pry, but could I ask you a couple of questions? A: Ask away. B: I don't want us to be roommates

发表于:2019-02-05 / 阅读(226) / 评论(0) 分类 地道英语对话-租房

By Steve Herman New Delhi 16 May 2007 Adequate health care remains unavailable to most of India's citizens, especially in rural areas. Even those fortunate enough to have access to good care, however, cannot be certain that a prescription from a reli

发表于:2019-02-05 / 阅读(231) / 评论(0) 分类 2007年VOA标准英语(五月)

By Naomi Schwarz Dakar 15 May 2007 France's president-elect, Nicolas Sarkozy, will be inaugurated on Wednesday. Some West Africans, uneasy over Sarkozy's campaign statements on immigration and the status of immigrants, say they worry about their coun

发表于:2019-02-06 / 阅读(176) / 评论(0) 分类 2007年VOA标准英语(五月)

BEIJING, July 15 (Xinhua) -- China's top meteorological authority on Sunday issued a blue warning for heavy rain as the country's southern regions are forecast to be pounded by downpours over the next three days. Torrential rains will hit parts of An

发表于:2019-02-06 / 阅读(166) / 评论(0) 分类 英语新闻

Lets be real. Willpower is a hard thing to learn. And, now that summer is over, our drive to stay fit for the beach has started waning. As the beautiful leaves start turning and fall rolls in, it feels really nice to start wearing pants again and hid

发表于:2019-02-07 / 阅读(213) / 评论(0) 分类 阅读空间

Car Index Indicates Growth Potential High in Developing Nations The International Monetary Fund hints it may cut global growth forecasts again next month when it updates its projections for the world economy. The global lending institution says world

发表于:2019-02-18 / 阅读(181) / 评论(0) 分类 英语新闻
学英语单词
alkalifast
answer only modem
arrester residue voltage
at a simmer
backgammoned
Boremel
Burgess, Gelett
Caroline Atoll
case-shiller
chloroplastal
close a bargain
control survey classification
cost incurred method
cyclconic circulation
depth of tillage
dexamed
divide at
DPMA
drawing right
driver-dispatch table
dynamic balancing tester
earsing
easily-controlled network
electromagnetic-type relay
environmental monitor station
etymological phoneme
European quaking aspen
fedpol
flexible can
fluid technology
fogging-resistance film
garden city movement
geodolite
heterocytonic (catcheside 1958)
hypotonize
inflammation of a joint
intellectual growth
intelligent sensor
investigative help
kayoedest
keyboard function
Mg-protoporphyrin
mm 2, mm.
Mort, L.du
mouth-filling
multifunction display (mfd)
muswells
myricetin
network impedance
night-time reconnaissance system
obstructive ventilatory disorder
organic-quenched counter tube
palindromes
pancreatic cyst
picotransistor
pithecanthropera
planned transport
plant permanent record
porcelainware
Prague School
presbyacusis
pressure fusing
private placing
promiser
proterozoic eons
protominimalist
pummelnose
reciprocating-rope seeder
recovery arrangement
reflected (global) solar radiation
refraction process
rejected item
revolutum
Romanoff
secondary myocardiopathy
segment sharing
semisubmersible barge
ship deliverer
sir peter paul rubenss
Six Mile Water
specialed
stadiometry
standard lookup
statistical models
substantivalist
sufganiyah
suggestion therapy
switching node
sympatheticoma
syndesmitis metatarsea
take the shine off
Tiff.
topochemical reaction
torpedo tube
tsuboi
two-way cock
unsubstantiated hypothesis
Warburg respirometer
waste rock
welfaryng
went out to
wood chipper