单词：Spraynal
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Nalini Nadkarni挑战我们对于树木及监狱的传统观点，她认为这两者都比我们所想得更具活力。经由与华盛顿州政府的合作，她将科学课程及保育计划引进给受刑囚犯，并得到超乎预期的效果。
TED公开课:罪与罚
Today we're going to talk about keeping a journal. If you're an aspiring writer, you've probably heard that writers should keep a writing journal. The first time I kept a real writing journal was in my freshman English class in college, so since it's
英语语法 Grammar Girl
NB: This is not a word for word transcript Stephen: Hello, I'm Stephen. Rob: And I'm Rob. Stephen: And this is 6 Minute English! This week were talking about citizen journalism. Rob: Citizen journalism thats when people who arent trained journalists
六分钟英语
This is Scientific Americans 60-Second Science, I'm Steve Mirsky. Got a minute? Ever-increasing numbers of people are consuming news via the Internet and cell phones. In London last week at the World Conference of Science Journalists, Philip Hilts, t
Scientific American(七)月
DEVELOPMENT REPORT – July 22, 2002: Maternal Deaths Study By Jill Moss This is Bill White with the VOA Special English Development Report. Each year, more than five-hundred-thousand women in develop
农业与发展
Spray Detects Hard-to-Find Tumors Surgeons may soon have a new tool to help locate early-stage cancerous growths; a spray that turns fluorescent green when it comes into contact with tumors. The spray is clear, but contains a non-toxic dye that almos
VOA标准英语2011年(十一月)