单词：fission-product activity
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This is Scientific America's Sixty-Second-Science. I am Steve Mirsky. Got a minute? Some interesting electrical activity in the clouds of ash drifting around Europe as a result of that Icelandic volcano. Models predicted that electrical charge should
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This is the VOA Special English Health Report. How active you are early in life may affect how able-minded you are late in life. That was the finding of a new study of cognitive impairment, or a loss in mental abilities. The study involved more than
2010年VOA慢速英语(七)月
BEIJING, March 29 (Xinhua) -- Chinese President Xi Jinping on Wednesday stressed the importance of afforestation and urged people, especially the young, to understand and protect nature via tree planting activities. Chinese PresidentXi Jinpingtalks w
cctv9英语新闻2017年
Joerg Weigl, who came up with the idea and is one of the supervisors of the project, said he wanted Snowstorm to help people realize their dreams of flying. Because flying is now a community. People can now fly with a jetliner, but the feeling of fly
英语新闻
primary capital 基本资金；基础资本 primary input 初期投入的资源 primary lien 第一留置权 primary listing 第一上市 primary market 初级市场；基本市场；第一市场 prim
财会英语