杂环乙基化

This is the VOA Special English Agriculture Report. Recycling programs usually give new life to materials like paper, metal, plastic and glass. But a program in the eastern United States is recycling shellfish to help the Chesapeake Bay. Oysters are

发表于:2018-12-07 / 阅读(90) / 评论(0) 分类 2010年VOA慢速英语(十一)月

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(135) / 评论(0) 分类 2014年VOA慢速英语(五)月

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(93) / 评论(0) 分类 VOA双语新闻 2014年1月

A South Korean official says North Koreas leader commented that he is committed to denuclearization of the Korean Peninsula. National security advisor Chung Eui-yong also said that the leaders of North and South Korea are to meet in the capital of No

发表于:2019-01-03 / 阅读(113) / 评论(0) 分类 2018年VOA慢速英语(九)月

THE MAKING OF A NATION - February 14, 2002: Inauguration of Franklin Roosevelt By David Jarmul VOICE 1: THE MAKING OF A NATION -- a program in Special English by the Voice of America. (Theme) American

发表于:2019-01-11 / 阅读(94) / 评论(0) 分类 The Making of a Nation

By Mil Arcega Washington, DC 23 May 2006 watch Ewaste report Recycled computer keyboards The business of disposing electronic waste - or e-waste - is growing as computer usage increases around the wor

发表于:2019-01-11 / 阅读(147) / 评论(0) 分类 2006年VOA标准英语(五月)

By Scott Bobb Johannesburg 24 April 2007 Simone Chivale, 30, walks towards a destroyed home, in the Mozambique coastal town of Vilankulo, 24 Apr 2007 Relief officials in Madagascar have begun airlifting emergency food supplies to northern Madagascar,

发表于:2019-01-12 / 阅读(117) / 评论(0) 分类 2007年VOA标准英语(四月)

The International Organization for Migration says dozens of health workers are providing primary health care and other essential medical assistance to thousands of victims of Cyclone Nargis, which struck Burma in early May. Lisa Schlein reports for

发表于:2019-01-13 / 阅读(93) / 评论(0) 分类 VOA标准英语2008年(七月)

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(91) / 评论(0) 分类 VOA标准英语2014年(一月)

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(67) / 评论(0) 分类 白领英语晨读

By Al Pessin Pentagon 27 November 2007 The U.S. military is providing hundreds of tons of relief supplies to victims of the cyclone in Bangladesh, much of it using a warship and helicopters sent to the region last week from duty in the Middle East. V

发表于:2019-01-31 / 阅读(110) / 评论(0) 分类 VOA常速英语2007年(十一月)

序号 中 文 英 文 术语解释 缩写 来源 261 操作和维护 Operation Maintenance O&M YD/T 883-1999 262 操作维护和管理 OAM YD/T 997-1999 263 操作维护中心 Operation Maintenance

发表于:2019-02-01 / 阅读(151) / 评论(0) 分类 电信英语

In the United States, the fastest growing type of trash is e-waste: computers, TVs and other electronics. Because many e-waste components are toxic, many communities are striving to recycle them more responsibly. From Boulder, Colorado, Shelley Schl

发表于:2019-02-03 / 阅读(136) / 评论(0) 分类 VOA标准英语2008年(十二月)

By David Gollust State Department 07 May 2008 The senior U.S. diplomat in Burma said Wednesday the death toll from the cyclone that hit the southeast Asian country late last week could exceed 100,000. Secretary of State Condoleezza Rice meawnhile say

发表于:2019-02-03 / 阅读(103) / 评论(0) 分类 VOA标准英语2008年(五月)

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(92) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(108) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(101) / 评论(0) 分类 万物简史

BEIJING, May 9 (Xinhua) -- The State Council, China's cabinet, said on Wednesday that the country will step up efforts to promote informatization development and strengthen information security. Speeding up the construction of informatization and bui

发表于:2019-02-18 / 阅读(96) / 评论(0) 分类 英语新闻

Ben je jezelf weer verloren Alles wat er van je wordt verlangd Je lijkt je aan de stilte te storen En wat ik ook zend het lijkt alsof jij het niet ontvangt Of wil je liever niet weten Voor welk ding echt jij je ogen sluit Ben je domweg vergeten Om te

发表于:2019-02-20 / 阅读(105) / 评论(0) 分类 英文摇滚歌曲

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(122) / 评论(0) 分类 TED演讲教育篇
学英语单词
a nodding acquaintance
accelerated by a spring
acupuncture analgesia
adenolymphoma
aspirated sound
bid-rent curve
blench at
brachypellic pelvis
brick earth
bumblebee cotton
cable modem termination system
Calligonum zaidamense
CDRL
channeled plate
choleretic
class group of paths
closed-circuit operation
colored ink
control central tracking
De Long, George Washington
debt-to-net worth ratio
Decca data sheet
ebonist
eccentricity errors (x-ray powder camera)
electropunk
EVLW
exploited class
extraction efficiency
faithlessly
fine-crushed rock road
flat performance
foul water
gentler
glass prism
GM_past-simple-i-worked
golfdom
graduation of tints
Herzog Keyboard
HPN
hydrated clay
hypomelanistic
infra-red astronomical satellite
ionone ring
joy ride
kataphatically
law factory
lemon-garlic-butter
log handling tong
mabuchi
McKinlay
medianet
meovable
minidisk
mother-of-pearl
mucosal flap
Muntingia
naval mobile environmental team
Nefta
non-stationary random process
north east spot beam
North Western Prov.
NRRE
OAU,O.A.U.
OFris
ox-antelope
parnhams
physiological sensation
Podochilus
police power
policy ineffectiveness theorem
positive afterimage
pourest
priestliker
put in an appearance
rachitic diet
relative neighbourhood
resistance ground
Romney Marsh
S-configuration
sample bag
schema level description
segregation ratio distortion
Self-selectivity
semantic logic notation
semiquote
sized
something special
stag-beetle
submit a report
subterminal spore
switch plug
the last but one two
the presentation of credentials
thieve out
think positive
transarrangement
two ways amrs
upfield
Wajda
whistle past
yenshan orogeny
Zhang Jian