单词：bakable vacuum microbalance
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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
原版英语小短文
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
By Lisa McAdams Moscow 24 April 2006 Russian President Vladimir Putin, right, and his visiting Kyrgyz counterpart Kurmanbek Bakiyev meeting in the Moscow Kremlin on Monday, April 24, 2006 Kyrgyzstan P
2006年VOA标准英语（四月）
Bakken Crude Volatility, Rail Safety Scrutinized in Northern US WILLISTON, NORTH DAKOTA The U.S. department of transportation recently issued an emergency order requiring shippers of Bakken oil to ensure that the substance is properly classified prio
VOA标准英语2014年(六月)
By Kurt Achin Seoul 25 February 2008 The former Seoul mayor who swept December elections in South Korea is getting used to his new title: Mr. President. Lee Myung-bak has taken his oath of office in a formal ceremony in the South Korean capital. VOA
VOA常速英语2008年（二月）
BERLIN, April 12 (Xinhua) -- Struggling Bundesliga side Cologne sacked Norwegian coach Stale Solbakken owing to the hammering 4-0 loss at Mainz this week, the club announced on Thursday. The club introduced former coach Frank Schaefer for the final f
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