音标:[kә'leizә] ;
n. 卵黄系带
[医] 合点(植物), 卵带
n. basal part of a plant ovule opposite the micropyle; where integument and nucellus are joined
n. one of two spiral bands of tissue connecting the egg yolk to the enclosing membrane at either end of the shell
词型变化:名词复数形式 : chalazas

President George Bush says the United States faces difficult economic times - a situation made worse by congressional inaction. 美国总统布什星期二在白宫举行的记者会上说,美国正面临经济困难时期,而国会缺乏行动则使

发表于:2018-12-19 / 阅读(43) / 评论(0) 分类 VOA双语新闻 2008年4月

(SOUNDBITE OF ARCHIVED RECORDING) UNIDENTIFIED WOMAN #1: Fifty-two. UNIDENTIFIED WOMAN #2: Four-hundred-and-fifty-three. UNIDENTIFIED MAN #1: Twenty-five. RACHEL MARTIN, HOST: Time for some number crunching from our data expert Mona Chalabi from five

发表于:2018-12-28 / 阅读(71) / 评论(0) 分类 英语语言学习

(SOUNDBITE OF ARCHIVED RECORDING) UNIDENTIFIED WOMAN #1: Fifty-two. UNIDENTIFIED WOMAN #2: Four-hundred-and-fifty-three. UNIDENTIFIED MAN #1: Twenty-five. RACHEL MARTIN, HOST: Time for some number crunching from our data expert, Mona Chalabi of fivet

发表于:2018-12-28 / 阅读(69) / 评论(0) 分类 英语语言学习

By Dan Robinson Washington 07 December 2007 At a U.S. congressional hearing Thursday, witnesses challenged the testimony of a U.S. official who was defending a decision to remove Vietnam from a list of countries failing to do enough to promote religi

发表于:2019-01-10 / 阅读(60) / 评论(0) 分类 VOA常速英语2007年(十二月)

Anna Chalon这首Run and Hide是电影《我曾经爱过》的插曲,讲述了被丈夫抛弃的女子Chlo,与生性沉闷的公公Pierre出于偶尔,一次敞开心扉的谈话。Anna的声音沙哑而慵懒,这首旋律简单迷人的Run An

发表于:2019-01-10 / 阅读(84) / 评论(0) 分类 天籁音乐

AS IT IS 2015-11-05 Iraqi Politician Ahmad Chalabi Dies 伊拉克政治家艾哈迈德沙拉比逝世 Iraqi politician Ahmad Chalabi, 71, has died in Baghdad. 伊拉克政治家艾哈迈德沙拉比在巴格达去世,享年71岁。 Chalabi influenc

发表于:2019-01-12 / 阅读(95) / 评论(0) 分类 2015年VOA慢速英语(十一)月

By Cathy Majtenyi Nairobi 23 May 2006 A young HIV positive orphan lies in his cot at the Nyumbani children home, a hospice for AIDS orphans in Nairobi, Kenya Every day, nearly 1,800 children under the

发表于:2019-01-13 / 阅读(115) / 评论(0) 分类 2006年VOA标准英语(五月)

From antiviral drugs to face masks, Asia's biotechnology and pharmaceutical companies are helping the global response to H1N1 flu. A CDC Image of H1N1 influenza virus Hong Kong company Filligent's product seems to come at the right time. After six y

发表于:2019-01-13 / 阅读(81) / 评论(0) 分类 VOA标准英语2009年(五月)

AIDS Orphans Face Psychological Challenges In many parts of Africa, AIDS has had a devastating effect. Now, 30 years into the epidemic, researchers are learning more about the impact on orphans and other children whose parents get AIDS. Oxford Univer

发表于:2019-01-14 / 阅读(63) / 评论(0) 分类 VOA标准英语2011年(六月)

Time for some number crunching from our data expert, Mona Chalabi, from fivethirtyeight.com. And she has given us this number of the week. AUTOMATED VOICE: Thirty-eight. MARTIN: That is the percentage of American wives who earn more than their husban

发表于:2019-01-24 / 阅读(81) / 评论(0) 分类 英语语言学习

By Laurie Kassman U.S. and Iraqi forces say they are preparing a major assault against insurgents loyal to radical Shi'ite Muslim cleric Moqtada al-Sadr in the holy Shi'ite city of Najaf after a week

发表于:2019-01-26 / 阅读(73) / 评论(0) 分类 VOA2004(下)--新闻盘点

JEFFREY BROWN:And we begin an occasional series about the way we live ever more of our lives online in the digital age, and some of the risks and rewards connected with this evolution. In coming segments, we will discuss the connections and disconnec

发表于:2019-01-27 / 阅读(313) / 评论(0) 分类 PBS访谈社会系列

The Silverdocs film festival is widely regarded as one of the most important film festivals in the country. Each year, the festival offers independently-produced non-fiction films from around the world, attracting filmmakers and moviegoers alike. The

发表于:2019-02-05 / 阅读(79) / 评论(0) 分类 VOA标准英语2010年(七)月

While Republicans gathered for their convention in St. Paul Tuesday, former Republican presidential candidate Ron Paul held a rally across the Mississippi River in the city of Minneapolis, challenging Republicans to re-evaluate their ideals. VOA's G

发表于:2019-02-06 / 阅读(70) / 评论(0) 分类 VOA标准英语2008年(九月)

One of the key foreign policy questions facing the incoming Obama administration is how to deal with a resurgent Russia? Most analysts agree that after Barack Obama is sworn in as the 44th U.S. president on January 20, his administration's main chal

发表于:2019-02-06 / 阅读(94) / 评论(0) 分类 VOA标准英语2008年(十二月)

BERLIN, Oct. 21 (Xinhua) -- German Bundesliga club Schalke has signed goalkeeper Timo Hildebrand until the end of the season, the club announced on Friday. The 32-year-old former German international goalkeeper was out of contract and joined Schalke

发表于:2019-02-06 / 阅读(104) / 评论(0) 分类 英语新闻

ALMATY, Nov. 4 (Xinhua) -- Kazakhstan's Center for Prevention and Control of AIDS said Friday that the country had 17,266 registered HIV carriers as of Oct. 1,compared with 15,908 as of Feb. 1, 2010. Of the HIV-positive people, 1,432 were diagnosed w

发表于:2019-02-07 / 阅读(88) / 评论(0) 分类 英语新闻

Efforts by activists to force India's government to strike down a Victorian-era law banning homosexuality are gaining momentum. It is another sign that India's deeply conservative society is changing. Raymond Thibodeaux reports from Bangalore, capit

发表于:2019-02-07 / 阅读(103) / 评论(0) 分类 VOA标准英语2008年(八月)

I love cricket, and I wanted to do something for my country because I come here Twelve teams from around the world are competing in this year's international tournament for one-day cricket matches, the Twenty20 World Cup. While the presence of perenn

发表于:2019-02-12 / 阅读(83) / 评论(0) 分类 VOA标准英语2010年(五)月

The international Red Cross has signed an agreement with an African meteorology organization, hoping to better predict and respond to disasters caused by climate change. 国际红十字会同非洲气象组织签署协议,希望能更好地预测,并

发表于:2019-02-14 / 阅读(59) / 评论(0) 分类 VOA双语新闻 2009年3月
学英语单词
accelerator module
air-annealing
antegrade
bailies
bawneens
be ridden
beam-like element
biology of marine mammals
bromoaspirin
bubble perm
burning temperture
cellulith
Chinese mantis
chlorophosphate
chronotropes
clean sheets
communication function
congruent triangles
Cuchillo-Có
DC restorer
dust stratification
end magnetic field
engrafture
exarceate
Federal Farm Credit System
ferniest
field validation
filter(ing) bag
fizzling
foah
follow-up survey
food aid
gage lamp back casing
Gentiana longistyla
geography of china
gruff
guanylate kinase
Gustavus I
heedlessly
height of leaf
hermetically sealed chamber
highschooler
important spare-parts program
innew
intellectual power
internal trans
laser fluorescence detector
laser navigation equipment
letterzine
lobuli corticales
low-power and digital technique
mat effect
matrix formulation of linear programming problem
maximum performance speed
menorrhagia
methylpyrroline
misprinted
molycorp
mountain skinks
moving time
natural born citizen
netherlands school
non flexible price
one-sided (tailed) test
osmite
Otshandi
overpicturing
pace oneself
pay-as-you-view
permit out
picture resolution
pressure volume temperature
prime-sites
private partnership
program generated parameter
regin-
report structure
Richelsdorfite
sciture
scraping up
Skovby
spasmotoxin
spit-sticker
surgione
sutro
synergel
telosmoside
ten times as easy
therer
throat sweetbreads
triboelectric charge
trimming knife machine
unsquare
unsurrenderable
V-C
valourously
veinography
vocal sound
wire form cupric oxide
with sb's knowledge
Wurm
xanthotoxin