细胞致死突变型

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(206) / 评论(0) 分类 VOA2003(下)-环境与健康

1. Nerd/geek/dork/dweeb/gweeb 呆子. 这些字都代表一个人因为太专注某件事而看起来不太正常, 而并非不聪明的呆, 如书呆子, 计算机怪胎等, 这几个字可以交换使用. 其中 nerd , geek 和 dork 比其它二个来

发表于:2018-12-17 / 阅读(315) / 评论(0) 分类 今日美国口语

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Generations of American children have been told, Eat your broccoli! And for decades, researchers have known that broccoli and related vegetables like cauliflower and water

发表于:2018-12-24 / 阅读(130) / 评论(0) 分类 Scientific American(一)月

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(173) / 评论(0) 分类 国家地理2008年

I can't believe Mr. Feeny actually missed a day of school. Well, you know who you can thank for that, don't you? Zeus? Me! I wished for him to get sick, and he did. You didn't wish for him to get sick. Sure I did, yesterday when we weren't studying.

发表于:2019-01-02 / 阅读(150) / 评论(0) 分类 听美剧学英语-《淘小子看世界》

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(161) / 评论(0) 分类 2007年VOA标准英语(九月)

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(124) / 评论(0) 分类 VOA标准英语2008年(五月)

He was the embryo of the very thing we were trying to do consciously. He had started with bossa nova, and he had added rhythm'n'blues and rock'n'roll to his thing. And he had a new synthesis that prefigured everything the Tropicalistas wanted to, to

发表于:2019-01-22 / 阅读(227) / 评论(0) 分类 自然百科2012年

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(148) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(148) / 评论(0) 分类 VOA常速英语2008年(四月)

By Cindy Saine Washington 16 April 2008 The U.S. Supreme Court has upheld the most common method of lethal injection used for executions by the federal government and 36 states. The unsuccessful constitutional challenge to the three-drug lethal injec

发表于:2019-01-31 / 阅读(114) / 评论(0) 分类 VOA常速英语2008年(四月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(293) / 评论(0) 分类 英语新闻

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(257) / 评论(0) 分类 趣味英语

EIJING, Aug. 30 (Xinhuanet) -- The United Nations is warning authorities to be on high alert of bird flu as the virus appears to be returning. The UN Food and Agriculture Organization said in a statement Monday a mutant strain is spreading across par

发表于:2019-02-08 / 阅读(167) / 评论(0) 分类 英语新闻

Have you ever wanted to stay young a little longer 大家有没有想过要年轻再久一点 and put off aging? 延缓衰老呢? This is a dream of the ages. 这是很久以来的梦想了 But scientists have for a long time 不过科学家以前一

发表于:2019-02-14 / 阅读(126) / 评论(0) 分类 TED演讲科学篇

Naw Kham, who was convicted of murdering 13 Chinese sailors on the Mekong River in 2011, was executed earlier this afternoon. The Myanmar drug lord and three of his accomplices, identified as Hsang Kham, Yi Lai,and Zha Xika, were given the lethal inj

发表于:2019-02-14 / 阅读(143) / 评论(0) 分类 英闻天下

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(161) / 评论(0) 分类 VOA常速英语2007年(十二月)

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(210) / 评论(0) 分类 英语新闻

An international group of scientists has engineered an enzyme which they say will be able to eat some of the most common plastic. It's being touted as a possible way to fight pollution. Improvements aimed at making the enzyme work more effectively ar

发表于:2019-02-22 / 阅读(163) / 评论(0) 分类 2018CRI中国国际广播电台

儿童节快乐!来看看美国卡通明星用英语怎么说! 1)Popeye the Sailorman 大力水手 old school古老的2) Teenage Mutant Ninja Turtles/TMNT忍者神龟 Mutant变异的Renaissance文艺复兴3) SpongeBob海绵宝宝4) Patrick派大星

发表于:2019-03-02 / 阅读(166) / 评论(0) 分类 OMG美语
学英语单词
a little rust on the leaves
a.h
agalactous
agazest
air requirement
aptiganel
astringe
back and forth
banat
bascinets
batch hopper
Bonnevie
Bouin's solution
brads
capacitance coupled
clutch housing cover plate
colids
complete metric space
corticodiencephalic
costings
cylindrical drum
debug support system verb description
delinquency proneness
dickly
dissolutious
doctor
double row hydraulic type pusher
draw-bore pin
dumbly
DURRANT
environmental warfare
external diffusion hormone
Glazebrook prism
ground force
gun parallax
herbert marxes
hermitism
hippocampus
hydrobatess
instantaneous fishing mortality coefficient
internal barrier
kissiest
know something inside and out
Koksharka
kronosaurus
look to
loss of business
lube oil distillate
macaronis
main power circuit
Marahuaca, Cerro
markois
Maulana
mercerised
mild-hearted
millitesla
Morgan State University
motivation to hehavior
non-hydrodynamic
numerically controlled drilling machine with vertical spindle
open sb's eyes to
operations planning
palletized unit load
patrons
penninghames
Poly(ribitol-phosphate)beta-glucosyltransferase
poppet head tail stock
potholes
prattville
pseudopycnidium
publisheth
putery
pyx chest
reading assignments
registered airplane
republish
res publicae
rhipsaliss
ring-ouzel
rotary dynamic derivative
salt sickness
Sapgyocheon
sawbellies
scale of survey
shoot the bull
similar joint action
single plate friction clutch
skean dhu
squareless
squares away
statuefy
Stetin
subtraction circuit
the relative acid content of the soil
time setting
transmission energy converter
transport and loading vehicle
unreduced designs
vehicle dry weight
weakly alkaline soil
witches'-besom
zero access instruction