音标:[sʌl'faiәn] ;
硫离子
n. A hypothetical radical, SO4, regarded as forming the acid
or negative constituent of sulphuric acid and the sulphates in
electrolytic decomposition; -- so called in accordance with the binary
theory of salts.

Abby: hi, my name's Abby. What's your name? Colin: I'm colin. It's nice to meet you. What do you do? A: I'm a freelance English teacher. How about you? C: I'm in between jobs at the moment. A: what kind of job are you looking for? C: I'd like to find

发表于:2018-11-30 / 阅读(290) / 评论(0) 分类 生活英语情景口语

By Crystal Park Washington 05 January 2006 Business- Delphi Job Cuts The decline of American car-makers and fierce competition from overseas suppliers have forced the largest U.S. auto parts manufactu

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Back now with The Day to Day. The world's richest man, the founder of Microsoft, plans to gradually step away from his company's everyday operations. The man of course, Bill Gates, Microsoft's next major goal is to try to go after the online music bu

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Malaysia agreed to extend a mandate to keep its peacekeepers in the volatile southern Philippines, where they will continue to monitor a shaky cease-fire between the Philippine government and the Moro Islamic Liberation Front. Nancy-Amelia Collins i

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U.S. Vice President Joe Biden says he is withholding judgment on Iran's presidential election, as protests continue in Tehran over election results showing a landslide re-election victory for President Mahmoud Ahmadinejad. Vice President Joe Biden,

发表于:2019-01-13 / 阅读(213) / 评论(0) 分类 VOA标准英语2009年(六月)

By Sean Maroney Islamabad 28 September 2009 The head coordinator for the U.N. Humanitarian Affairs office in Pakistan says his agency is ready to handle what is expected to be a large number of families fleeing the South Waziristan tribal region as

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BBC Learning English Weekender Body image survey results Amber:Hello, I'm Amber, and youre listening to bbclearningenglish.com. In Weekender today, we listen to a report about a BBC survey of 25,000 young British people, asking about their body imag

发表于:2019-01-16 / 阅读(248) / 评论(0) 分类 Weekender

By Douglas Bakshian Manila 14 December 2007 The son of Libyan leader Moammar Gadhafi has discussed unifying the two main Muslim rebel groups in the Philippines to help achieve a comprehensive peace between the rebels and Manila. The development came

发表于:2019-01-31 / 阅读(205) / 评论(0) 分类 VOA常速英语2007年(十二月)

-Everyone loves a good ghost story. The gruesome, the spiritual and the supernatural arouse an instinctive curiosity in all of us. In the west, ghostly fervor reaches a peak with Halloween on October 31. In Thailand, the spirit-world comes closest to

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音乐咖啡厅:Phixx - Relentless 相关介绍:这是英国超人气偶像组合Phixx的处男专辑。Phixx是参加英国选秀节目The Rivals的五名成员。他们是Andrew Kinlochan、Chris Park、Peter Smith、Nikk Major和Mikey Green。 2

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音乐咖啡厅:Phixx - Dont Walk Out 相关介绍:这是英国超人气偶像组合Phixx的处男专辑。Phixx是参加英国选秀节目The Rivals的五名成员。他们是Andrew Kinlochan、Chris Park、Peter Smith、Nikk Major和Mikey Green。

发表于:2019-02-06 / 阅读(237) / 评论(0) 分类 音乐咖啡厅

By Scott Bobb Lisbon 10 December 2007 The Africa-European Union summit ended Sunday in Portugal with agreement on many global challenges but with differences on other key issues. Correspondent Scott Bobb has this report from Lisbon. European and Afri

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By Claudia Blume Hong Kong 16 November 2007 Hong Kong-based human rights groups who recently returned from a fact-finding mission to the Philippines found that the frequency of extrajudicial killings in the country has gone down. Disappearances, howe

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Transcript for Reference Only --chunshan The infrared astronomical satellite, now celebrating its 25th anniversary, gave us the first all sky view of our dusty infrared universe. Floating above the galactic center is the Rho Ophiuchi Cloud, about 400

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学英语单词
a riot of color
ability profile
aetiologicai
aishling
Alkanna Tausch.
aneurysm of splenic artery
atmosphere effect
Benzidazol
Birx
Bitronics
braselton
breakfast club
broadband cable
Bykle
capacity-demand ratio
centre of rotation
Chrysops
continuous sand mill
current affairs broadcast
Cypraeacea
direct current converter
displacement pump asphalt spreader
double drop machine
EDNA
electricite
Elila
etherizations
eugen
executive-level
flap-eared
functional position
gas firing
general-purpose indexes
geomyricite
gurstelle
hardfacing
heavy-footedness
Hikurangi
house b/l
hug
hurry-up wagons
internal braced wing
interpeduncular fossa
knightleys
knot borer
Laughlin Peak
lead ethyl xanthate
ligustrina
Louverné
manually-operateds
Manufacturing Automation Protocol
mayonnaise
meet extinction
mesmerize
microtome knives
missile injury of pelvis
multi-cavity mold
nautical system
new step
nissl's body
O1-constituent
odontoptosis
oil pay zone
parent track
pedal bins
perturbing drag
piecemeal necrosis
piston gauge
polycambial
posterior fontanelle
primip
purinometer
retirement accounts
Robellazite
rotary screen dryer
Runswick Bay
say ... say
secrette
seismism
serrated camshaft
shabby clothes
ship's special survey with date
solar pv
statistical betatron process
submerged current
systems administrators guild
technical reform
the shocker
tip-top
to do sb's bidding
Trigonum fibrosum sinistrum
Triosteum sinuatum
troupials
twisting around
twisting count
vehi
vesivirus vesicular exanthema virus
visual disturbance
water systems
wiriadinata
X-stretchers
Zuckerkandl's organs