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(295) / 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(202) / 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(190) / 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(189) / 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(152) / 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(251) / 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(159) / 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(194) / 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(226) / 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(170) / 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(163) / 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(228) / 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(174) / 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(196) / 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(242) / 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(257) / 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(184) / 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(179) / 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(197) / 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(269) / 评论(0) 分类 cctv9英语新闻2016年
学英语单词
acetyloxytheophylline
adeli
an account
Arthur II
articulationes cuneocuboideus
auger feed
balaus
Balsam Lake
bluff erosion
boundary continuum
brown supremacy
calving jack
cardiotachometry
cascade process of refrigeration
chapenonada
cinamolol
circumplasmatic
clappa
Cnemidocoptes gallinae
colonization infection
Confcommercio
continuous rope drive system
cornfactors
creasote
cylindruria
dil.
dilatorily
drive part
duct cable
effective seedling
electrooptical switches
electrosleeps
emersiherbosa
Esac
ethnonationality
ethyl triphenyl silicane
fitting piece
fluctuation of metal line
frog position
front end cover
fuji-sans
fumetti
Harker
hpbw
hypamnion
Ilex austrosinensis
iron-platinum
John Hays
Křižanov
lacquer sheathing
lexical categories
long-time base
lucky breaks
mass spectrophot-ometer
mobile-health
non-resonating transformer
nonrestrictive relative clause
nowyr
outsprung
palatouvularis
performance fee
phyllocoma convoluta
pink snappers
plagioclasic
postinstallation
press talk switch
private electric power
process development pile
program command
pryddest
pyronone
quick service valve
racanelli
rate-zone centrifugation
reciprocal piezoelectric effect
reverse rig
ri-
ribbed slab
riyals
Sally-lunn
scarlet fever sine eruptione
schizomid
specific parasite
state-owned forest farm
sterling certificate of deposit
sweptback vane
synchronized i/o operation
Sysola
tacchino
teches
theorism
Tigy
tine derivative
Titanox
TNM classification
to-shiver
trammeled
uk -neutral
unilateral shift
vector-borne transmissions
voltage, ripple
walking beam conveyer