音标:[,reәrifi'keiʃәn] ;
n. 变稀薄, 稀薄
词型变化:名词复数形式 : rarefications

The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be foss

发表于:2018-12-01 / 阅读(241) / 评论(0) 分类 新东方背诵文选

By Nick Wadhams Nairobi 26 July 2007 Four rare mountain gorillas have been killed after gunmen crept up on them and opened fire in the Democratic Republic of Congo's Virunga National Park. Nick Wadhams has more on the story from Nairobi. The gorillas

发表于:2018-12-08 / 阅读(176) / 评论(0) 分类 2007年VOA标准英语(七月)

Rare Minerals May Be in North Korea 稀有矿物质可能在朝鲜发现 Hello and welcome back. Im Jim Tedder in Washington. Today we are going to talk about something that is worth a lot of money, and it is buried in the ground. Were not exactly go

发表于:2018-12-16 / 阅读(152) / 评论(0) 分类 2014年VOA慢速英语(二)月

A: What can I do for you today? B: Can I sign up for some classes today? A: Which classes? B: I would like to take a driver's course. A: Would you like to make an appointment? B: Why do I need an appointment? A: You need to sign the paperwork. B: Can

发表于:2018-12-16 / 阅读(164) / 评论(0) 分类 英语情景对话-驾驶

STEVE INSKEEP, HOST: We have an investigation this morning of drug companies gaming a system designed to help desperate patients. It's a story of orphan drugs. DAVID GREENE, HOST: These are life-saving drugs that pharmaceutical firms don't develop be

发表于:2018-12-18 / 阅读(123) / 评论(0) 分类 2017年NPR美国国家公共电台1月

Rare but Deadly By Susan Brink /2005, U.S. News World Report . All rights reserved with permission. Distributed by Tribune Media Services International. Simple, cheap blood tests could save thousands

发表于:2018-12-19 / 阅读(219) / 评论(0) 分类 彭蒙惠英语

Pre-Listening Vocabulary rare: not common irrational: not reasonable classified: grouped by like qualities provoke: to excite or bother a living thing and cause a reaction initiate: to be the one to start something delicacy: a type of food that is ra

发表于:2018-12-28 / 阅读(124) / 评论(0) 分类 趣谈英语

by Michael W. Flynn First, a disclaimer: Although I am an attorney, the legal information in this podcast is not intended to be a substitute for seeking personalized legal advice from an attorney licensed to practice in your jurisdiction. Further, I

发表于:2018-12-30 / 阅读(159) / 评论(0) 分类 法律英语 Legal Lad

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

发表于:2019-01-02 / 阅读(204) / 评论(0) 分类 午后咖啡

By Malcolm Brown Washington 09 October 2007 A collection of newly available photographs is shedding fresh light on those who carried out the Nazi holocaust. The public now has the chance to see the contents of an album, thought to have belonged to a

发表于:2019-01-04 / 阅读(128) / 评论(0) 分类 2007年VOA常速英语(十月)

Nicholas Willis has won a bronze medal in the men's 1500-meter race at the Beijing Olympics. He is one of many athletes who lives in the United States but was born in another country. VOA's Jim Stevenson has more on the middle distance runner from N

发表于:2019-01-07 / 阅读(129) / 评论(0) 分类 VOA标准英语2008年(八月)

By David Byrd Washington 29 May 2008 For most Americans, badminton is a backyard game played at parties and barbecues. But for Eva Lee, it is very serious - she is one of five members of the U.S. Badminton team that will be competing for gold at the

发表于:2019-01-13 / 阅读(190) / 评论(0) 分类 VOA标准英语2008年(五月)

Rare Violins Play Starring Role in Concert Stradivarius instruments, especially Stradivarius violins, are known the world over for their exquisite beauty, unparalleled craftsmanship and extraordinary sound. Six of the rare instruments are owned by th

发表于:2019-01-13 / 阅读(130) / 评论(0) 分类 VOA标准英语2011年(十二月)

RACHEL MARTIN, HOST: Scientists have developed a better test for a very rare brain disease. And as NPR's Rae Ellen Bichell reports, this test could lead to new ways to diagnose more common diseases like Parkinson's and Alzheimer's. RAE ELLEN BICHELL,

发表于:2019-01-16 / 阅读(167) / 评论(0) 分类 2017年NPR美国国家公共电台2月

THE MAKING OF A NATION - May 23, 2002: The War in the Pacific By David Jarmul VOICE 1: THE MAKING OF A NATION, a program in Special English by the Voice of America. (Theme) American military planners

发表于:2019-01-19 / 阅读(198) / 评论(0) 分类 The Making of a Nation

Grammar Girl here. Today's topic is verbification. Last week police used a Taser on University of Florida student Andrew Meyer as they struggled to remove him from an auditorium where Senator John Kerry was speaking. The Web has been filled with deba

发表于:2019-01-30 / 阅读(216) / 评论(0) 分类 英语语法 Grammar Girl

BEIJING, March 15 (Xinhua) -- China's restrictions on rare earth exports are justified and are in line with World Trade Organization rules, Shen Danyang, spokesman for the Ministry of Commerce, said Thursday. The policy aims to protect resources and

发表于:2019-02-08 / 阅读(157) / 评论(0) 分类 英语新闻

China is the world's largest producer and exporter of rare-earths. These are elements which are critical to the manufacturing of high-tech products, including smartphones, wind turbines and car batteries, among other things. However, the rare-earth i

发表于:2019-02-14 / 阅读(145) / 评论(0) 分类 2016CRI中国国际广播电台

WASHINGTON, March 12 (Xinhua) -- The United States and China on Monday held the third round of Consultations on Asia-Pacific at the U.S. Naval Academy in Annapolis, Maryland. The closed-door consultations were co-chaired by U.S. Assistant Secretary o

发表于:2019-02-19 / 阅读(164) / 评论(0) 分类 英语新闻

Two extremely rare Bengal white tiger cubs have been born at the wildlife center of the Czech Republic's Liberec Zoo, and are proving popular with visitors. These tiger cubs weigh 6 kilos 13 pounds, and were born two months ago. White tigers are the

发表于:2019-03-12 / 阅读(243) / 评论(0) 分类 cctv9英语新闻2016年
学英语单词
-lock
addition material
address-complete signal
agammaglobulinaemics
Angelica longicaudata
arctiid
audited vouchers
bad place, the
benzonitrile
blanking
boycotter
bronchospirography
busie
Cabernets
channel selector switch
chlorocarbene
class magazine
colored progressive matrices(cpm)
Corris
costume-makers
cretic
criteria score
cross lapping
cytoskeletal filament
deep souths
default value for device vector
directing plane
direction finder deviation
distortional stress
double-track system
Drilling Barge Insurance All Risks Clause
duplicating device
egg capsule
electric-magnetic brake
fascia grafting
FBSS
Ficus benjamina
field description statement
file layout
Floriano Peixoto
foore
gained
genu of facial canal
grass-fed
guillotine shutter
half-pin conductor
headwrap
hydraulic dustpan suction dredger
hypersociality
imperiali
industrywise
intelligence model
internal management regulations
isosbestic
koumpounophobia
lacustriss
Lithocarpus areca
micromyelolymphocyte
microroughened
Mieno
mitoribosomes
mixed polymer
mouse-click
murex hot-cracking test
nanoteslas
narsco
nnp
nonpropulsion
notch mark
one night
oval reel
passive resistence
perianal pruritus
photonephograph
phyllorhynchuss
Piqueras, Pto.de
power on condition
pranger
predicativity
pump check valve
qiyas
rating of deposits
rodometer
school principals
Sedum morrisonense
semiquantum
slide coil
social overhead investment
sodium peroxotitanate
sphincterotomy
standard seismometer
streke
sub-discipline
submarineline
tillot
trachyleberis yangtii
transmisson test bay
tribasic acid
turkeycocks
u-joints
underwater optics
ureteral