单词：vacuum method of drainage
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By Gary Garriott Broadcast: September 1, 2003 This is Sarah Long with the VOA Special English Development Report. People have always had to find ways to keep food safe to eat. Methods to dry, smoke an
VOA2003（下）-发展与科学
She inspected the carpet for small items. She saw a paper clip and a rubber band. She picked them up. She put them into a little box on the kitchen counter. She plugged in the vacuum cleaner. She turned on the switch. The cat ran out of the room. She
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DEVELOPMENT REPORT – Canning Food By Gary Garriott Broadcast: Monday, January 03, 2005 I'm Gwen Outen with the VOA Special English Development Report. People have always had to find ways to keep foo
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This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one
Scientific American(五)月
13 May 2002, 14:14 UTC AGRICULTURE REPORT – May 14, 2002: Wood Chips Protect Waterways By George Grow This is the VOA Special English AGRICULTURE REPORT. American scientists are developing ways to l
农业与发展
[00:00.00]Lesson 19 [00:01.07]第十九课 [00:02.14]NIGHTINGALE [00:03.17]南丁格尔 [00:04.21]Florence Nightingale came from a rich family and was very pretty. [00:07.60]弗罗伦斯南丁格尔出身富有家庭，相貌俊俏。 [00:11.00]In he
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