单词：carbon light
单词：carbon light 相关文章
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Bob Doughty. On our program this week, we will tell about an environmental study of the recent wildfires in California. We will also tell how some wat
VOA慢速英语2007年（十二）月
Shining a light on Edison 爱迪生的灵光一现 To make a good idea work, you need to be persistence. I learned this lesson through someone else, Thomas Edison. In 1878, the public became very excited when Edison announced he was going to have a s
英语小达人
Its a global call to action directed at every person, government, business and community across the planet, the message: Lights off for one hour at 8:30 PM on Saturday, March 27th. Four thousand cities and towns in 88 countries plunged themselves int
万花筒2010年
This week's summit of advanced economy leaders in Japan produced first steps toward a global climate agreement. However, it also spotlighted gaps on the issue both between rich and poor nations and between the world's biggest polluters and several n
VOA标准英语2008年（七月）
By Mandy Clark London 13 November 2007 A city in Britain and a U.S.-based fast food chain are teaming up to cut carbon emissions as well as save energy and space in the local landfill. Some 130 buildings in the City of Sheffield are now being powered
VOA常速英语2007年（十一月）
What Is Fire? 火是物质燃烧过程中散发出光和热的现象，是能量释放的一种方式。火焰分为焰心、中焰和外焰，温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存，缺一
英语听力文摘 English Digest