单词：15-O-methylcimigenol
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By Mike O'Sullivan Los Angeles 18 October 2006 The United States is a nation of immigrants. Most come legally, but some 11 million to 12 million people may have entered the country illegally, many from Mexico. As enforcement efforts are strengthened
2006年VOA标准英语（十月）
AS IT IS 2016-10-01 Report: Smoking May Permanently Damage Genetic Material 报告称吸烟或永久性损伤你的遗传物质 Here is another reason to not light up a cigarette. Smoking can permanently damage your genetic material, according to a n
2016年VOA慢速英语(十)月
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a
Scientific American(六)月
Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting
Scientific American(三)月
You may have heard that humans and chimpanzees have something like 96 percent of our DNA in common. So why, then, are diseases like cancer so common in humans but so rare in chimps? If our DNA is nearly identical, shouldnt we be at risk for many of t
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Stomach Cells Happier with Dark Roast Coffee Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to research presented
60秒科学
M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物（舞茸提取物） Malonyl Oleanolic acid Hemi
医务英语
AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals
农业与发展
By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the
VOA2003（下）-环境与健康
By Jeff Swicord Washington, DC 01 May 2006 watch Immigration report One of the major issues before the U.S. Congress is immigration reform. There are many sides to the debate -- including how any chan
2006年VOA标准英语（五月）
By Lisa Bryant Paris 18 June 2008 The European parliament has passed tough new immigration guidelines that sparked protests on the part of human rights groups and some lawmakers. For VOA, Lisa Bryant has more from Paris. European Parliament vote in
VOA标准英语2008年（六月）
Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长
经济学人科技系列
By Jordan Davis Dakar 05 February 2007 African immigrants arrive in a fishing boat carrying 60 to the port of Los Cristianos, in the Canary island of Tenerife, Spain, 1 Feb 2007 Mauritania says it is denying landing rights to a disabled boat carrying
2007年VOA标准英语（二月）
研究：人的鼻子能嗅出性别 WASHINGTON, May 1 (Xinhua) -- The human nose can sniff out gender from body secretions even though people don't think they smell anything, Chinese researchers reported Thursday. Wen Zhou of the Chinese Academy of
英语新闻
By Paula Wolfson White House 18 May 2006 President Bush went to the southern U.S. border with Mexico Thursday to make the case for immigration reform. Mr. Bush met with Border Patrol agents and Nation
2006年VOA标准英语（五月）
Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod
VOA常速英语2013年(十月)
By Paula Wolfson Guatemala City 12 March 2007 President Bush says he is hopeful there can be U.S. congressional action by August on immigration reform. VOA's Paula Wolfson reports the controversial issue dominated his talks in Guatemala City with Gu
2007年VOA标准英语（三月）
By Raymond Thibodeaux Thimphu, Bhutan 01 April 2008 The tiny, isolated Himalayan nation of Bhutan is experiencing record economic growth. But some experts are concerned about rising rates of unemployment among the country's youth as a growing migrant
VOA常速英语2008年（四月）
Among Morocco's poor, few are more destitute and disenfranchised than the estimated 15,000 sub-Saharan Africans who've become stranded there on their way to Europe. Ignored by Moroccans, rejected by the government, the migrants have few allies. In th
VOA标准英语2010年(三月)
By Greg Flakus Merida, Mexico 13 March 2007 President Bush is visiting a hacienda (plantation) in the Mexican state of Yucatan with his host, President Felipe Calderon, where the two leaders are discussing immigration, the fight against drug smuggle
2007年VOA标准英语（三月）