单词：vacuum paraffin embedding method
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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
The next morning after breakfast, everyone rushed over to check the Chore List that Mr. Morgan posted on the pantry door. Weve got kitchen duty, Jessie said to Benny. Sarah and Ive got something called . . . mulching, Violet said. Henry and I will be
34 The Mystery Horse
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
农业与发展
Oliver went to Target to buy a new vacuum cleaner. The vacuum cleaners at Target cost $60 to $500. The expensive ones were too bulky and, of course, too expensive. He bought the cheapest one in the store: a Dirt Devil Vibe. Its label claimed that it
365个英语简短小故事
The little splints of wood which we call matches are made out of deal or pine wood which has been soaked in melted paraffin wax to make it burn more easily. 这种被我们称之为火柴的薄木片由欧洲赤松（松树）制成, 在液体的石蜡
英国学生科学读本
This is Scientific America 60-Second Science, I'm Santy Criber. This will just take a minute. It's boating season, which means it'll soon be time for the annoying ritual, scraping of the barnacles.They lache on tide and don't let go, barnacles can be
Scientific American(七)月
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
放完长假回来，你是否会适应上班生活呢？很多人都会出现节后综合征，还要处理那么多的邮件，真让人感觉到烦躁..... Michelle: Hello and welcome to 6 Minute English from BBC Learning English. I'm Michelle. Ne
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THE PRESIDENT: Good morning. Earlier this week, I traveled to Baghdad to visit the capital of a free and democratic Iraq. It was an incredible feeling to stand in the cockpit of Air Force One and watch the pilot steer us in toward Baghdad. After we
美国总统电台演说
By Mike Cooper atlanta 15 May 2008 Some of the world's most gifted teenagers are gathering in Atlanta to participate in Intel's International Science and Engineering Fair. Their projects range from transmitting invisible data to extracting fuel from
VOA标准英语2008年（五月）
It was a half-holiday and William was in his bedroom making careful preparations for meeting his fellow outlaws, as they called themselves, in the afternoon. He and the other outlaws would always meet up during half-holidays, to go on adventures and
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RAY SUAREZ, HOST: All eyes turn to the Rust Belt where three states that voted for Democratic candidates since the 1980s helped Donald Trump win the election. Wisconsin hadn't given its electoral votes to a Republican since 1984. It was key to Trump'
2017年NPR美国国家公共电台4月
It's boating season, which means it'll soon be time for that annoying ritual, the scraping of the barnacle. They latch on tight and don't let go. Barnacles can be a major pain. As they grow they build up calcium deposits under a boat's paint. And the
Scientific American(七)月
If you are a Magellanic penguin, this ten-mile stretch of Argentine beach is where the action is--a place to scout about a new partner(物色新伴侣), conduct a courtship and settle down to raise the youngsters. National Geographic Grantee Dee Berg
自然百科2009年
Lilianjie Lu stands in a London classroom, struggling slightly with her English but with a winning smile on her face, as she attempts to teach them all about fractions. Lilianjie Lu站在伦敦的教室里，说着不熟练的英语，但脸上挂着信
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Faiza Elmasry | Washington, DC 03 December 2009 Junior Achievement brings business people to classrooms to share their experiences with students Junior Achievement is celebrating its 90th anniversary this year. The non-profit, which educates and insp
VOA标准英语2009年(十二月)
Business: The internet of things: Where the smart is 商业：物联网：智能家居，路在何方 Connected homes will take longer to materialise than expected. 真正实现互联家庭仍是长路漫漫。 The fanfare has gone on for years. 有关
经济学人商业系列
As he struggled with ill health, however, his equilibrium became more and more central to the discipline. 然而，就在他与病痛搏斗时，他的均衡之于这门学科变得越来越核心了。 The share of economics papers citing the Nash e
经济学人财经系列
It is also designed to reflect current market practice, with clear guidelines on communication between participants and on trade-execution practices 它还旨在反映当前市场实践，在参与者之间的沟通和交易执行操作上有明确的指
经济学人财经系列