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By Jessica Berman Washington 03 August 2007 There's a period in the development of toddlers when they seem to learn a new word every day. There are different theories about why young children undergo what experts call a word spurt. But one psychologi
2007年VOA标准英语（八月）
It's the worst one-day sell-off on Wall Street since after the 9/11 attacks. Stock prices plunged today across the board and around the world. The Dow Jones Industrial Average was down about 416 points at the closing bell and at one point it fell un
商业报道2007年
JUDY WOODRUFF: But, first, this week marks the 100th anniversary of the publication of Albert Einstein's greatest work, a series of papers laying out the general theory of relativity. Gwen has a look at how it changed our understanding of the cosmos
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U.S. sales of Toyota vehicles declined nearly 9 percent in February, the first full month since the Japanese automaker suspended sales and recalled 8.5 million cars for accelerator problems. Although the concerns about the safety of Toyota's vehicles
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Finance and economics: China's economic data Right on target 中国经济数据，正中红心 Is growth really 7% a year? 增长率当真是年7%？ It all seems a little too perfect to be true. 一切似乎完美得难以置信。 The Chinese gover
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Do you think of yourself as a bit of an expert at board games like chess or Go? Maybe you're not quite as good as you think. New research from the University of Manchester and the University of Oxford suggests complex games like these are impossible
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