单词：sarcomelanin
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This is scientific American's 60 seconds science. I'm Sophie Bushwick, got a minute. Tens of millions of years ago, cephalopods were hiding from enemies in clouds of ink. And it turns out thatcuttlefish today producing ink that's almost identical. Re
Scientific American(五)月
This is scientific Americans 60 second science, I am Sophie Bushwick. got a minute. Tens of millions of years ago, cephalopods were hiding from their enemies in clouds of ink. And it turns out that cuttlefish today produce ink thats almost identical.
Scientific American(五)月
(WA) Human populations near the equator have evolved dark skin over many generations because of exposure to the fierce rays of the Sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good ex
托福听力短文
Hi, its Kasey-Dee Gardner for Why? Tell Me Why? This week we received a question about baby eye color. The question was why are most babies born with blue eyes?. And I wasnt sure that was a true statement, but it is in fact a true statement. Actually
自然百科2009年
US Very Concerned About Syrias Sarin Gas The conflict between rebels and the Syrian government is intensifying. Now U.S. officials say there is movement activity around Syrias chemical weapons sites. Experts say it is a dangerous sign that a war invo
VOA标准英语2012年(十二月)
Japan is remembering the lethal nerve gas attack on the Tokyo subway system by a religious cult 10 years ago Sunday. A decade after the incident, legal appeals drag on, and survivors say they are suffering with little outside support. 这个星期天日
VOA双语新闻 Bilingual News
Chinese President Xi Jinpinbg meets with Carrie Lam, Chief Executive-elect of the Hong Kong SAR, on April 11th, 2017 in Beijing. [Photo: gmw.cn] Carrie Lam, Chief Executive-elect of the Hong Kong Special Administrative Region (SAR), said that bolster
2017CRI中国国际广播电台
During the visit to the Macao SAR government headquarters, Premier Li Keqiang hailed the contributions the region has made since its return to the motherland 17 years ago, calling them praise-worthy. Under the leadership of Chief Executive Chui Sai O
2016CRI中国国际广播电台
This all black feathered king penguin could be one in a zillion. The video was recorded on a sub-Antarctic island of South Georgia by National Geographic Traveler magazine contributing editor Andrew Evans on his bus to Antarctic expedition. While man
自然百科2010年
电影制作人 Penelope Jagessar Chaffer对她在怀孕期间面临的化学制品很好奇。它们会不会影响她未出生的宝宝？她让科学家Tyrone Hayes简要介绍他研究很深的课题：阿特拉津，一种用于玉米上的除虫剂
TED公开课:环境 重造计划
Your teenage son wrecks the car. Your daughter shows up with her recently paroled boyfriend. These are the sorts of things that can make your hair turn gray overnight. Actually, it's impossible for hair to completely change color overnight. Hair colo
英语听力文摘 English Digest
Russias news network Zvezda is reporting that the countrys new intercontinental ballistic missile will be ready for field trials this summer. The RS-28 Sarmat, dubbed Satan 2 by NATO, has been widely reported to have a top speed of seven kilometers a
cctv9英语新闻2016年
Many women around the world use skin-lightening beauty products in an effort to improve their looks. The World Health Organization, or WHO, reports that the country with the highest percentage of women using such products is Nigeria. In its 2011 repo
2019年VOA慢速英语(二)月