单词：chromosomal sterility
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El condor pasa Simon Lyrics : Paul Simon - Jorge Milchberg - Daniel A. Robles I'd rather be a sparrow than a snail Yes I would, if I could, I surely would I'd rather be a hammer than a nail Yes I woul
赖世雄教你学唱歌
austerity, n 节俭（严格节约，经济紧缩）；简朴；艰苦 【例】wartime austerity 战时节俭 【记】au读：诶哟，sterity＝sterility（n 不毛之地）－需要节俭 【反】ostentation（n 卖弄，摆阔）
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Broadcast: Feb 12,2003 More than 111,000 military reservists around the United States have been plucked out of their civilian lives and called-up to active duty, in support of the U.S. military's 2）
VOA2003（上）-文艺之窗
RACHEL MARTIN, HOST: A wide-ranging study shows that sperm counts are plummeting throughout the Western world, and scientists don't know why. NPR health correspondent Rob Stein suggests some of the potential reasons. ROB STEIN, BYLINE: In Margaret At
2017年NPR美国国家公共电台7月
This is scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? The yeast Candida albicans ekes out a quiet living in our gut. But its a tough life. It faces acids and enzymes, and the immune system always bullies invaders.
Scientific American(五)月
This is Scientific American's 60-Second Science, I am Steve Mirsky,Got a minute? A team of Finnish and American geneticists has found that that, for some people at least, music is in their genes. In what the researchers called the first study of its
Scientific American(六)月
This is Scientific American's 60-second Science. I'm Cynthia Graber. This will just take a minute. Guys, heres another reason to eat your veggies: they might be good for your sperm. Some studies show that male fertility and whats called seminal quali
Scientific American(六)月
The food industry leads the nation in pounds of waste produced annually. So, whats second? Its health care facilities. They dispose of more than four billion pounds of waste each year. Another shocker? A lot of that waste is perfectly functional. In
Scientific American(三)月
It's raining again又是一个下雨天 Tell me something I don't know告诉我我不知道的事 This place can make you dizzy这个地方能让你晕头转向 Sweet dream didn't show美梦不会出现 Walked across the finish line走过终点线 Wo
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Birth Defects Rise in Former Iraqi Battleground Five-year-old Lujane is one of hundreds of children in Fallujah who have been born since 2004 with severe birth defects. Her father says Lujane suffers from multiple afflictions that Iraqi doctors strug
VOA标准英语2012年(十二月)
16 Million Teenage Girls Get Pregnant Every Year 每年有1600万少女怀孕 Thursday, July 11, is World Population Day and the focus this year is on adolescent pregnancy. Its estimated that 16 million teenage girls give birth every year. Many are i
VOA标准英语2013年(七月)
这是一位自闭症患儿的妈妈写的关于爱和感动的故事： Relax. He is the same little boy you loved yesterday. I smiled trying to hold back the tears. No he isnt. Yesterday I dreamed he would be an astronaut. Today I am hoping he will
英语美文
Guys, heres another reason to eat your veggies: they might be good for your sperm. Some studies show that male fertility and whats called seminal quality have declined over the last few decades. So researchers from two fertility clinics in Spain loo
60秒科学
Doctor: Casual sex harmful to students Casual sex among middle school students may be contributing to growing sterility problems among young women in Guangzhou, capital of South China's Guangdong Prov
趣味英语
CANBERRA, Aug. 17 (Xinhua) -- Australian scientist on Wednesday said his international research team has discovered the trick on how butterfly learn to change its wing pattern to avoid being eaten by birds. The Amazonian butterfly, Heliconius numata,
英语新闻
Facebook and Apple are offering women employees the chance to put their dreams of motherhood on ice by paying for them to freeze their eggs. The extraordinary perk is aimed at boosting the number of women staff by allowing them to focus on their care
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I want you to imagine two couples 我希望大家设想一下，两对夫妇 in the middle of 1979 在1979年的年中 on the exact same day, at the exact same moment, 在相同的一天，相同的时刻 each conceiving a baby -- okay? 每对怀上了
TED演讲教育篇
The warring factions in Afghanistan say they will heed a call by the United Nations to stop fighting so aid workers can begin a three-day polio vaccination campaign. The Taliban, the Afghan army and international military forces say they will halt th
VOA双语新闻 2008年9月
Controversial Chinese philanthropist Chen Guangbiao admitted he cheated in the ALS Ice Bucket Challenge, Sanxiang Metropolis Daily reported on Thursday. 据国内媒体报道，中国最受争议的慈善家陈光标日前承认，他在之前的关注
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