单词：tectonic forces
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Serial bomb blasts have rocked the Indian state, Assam, with most of the explosions taking place in crowded markets. India's government confirms at least 12 separate blasts, with police saying around 50 people have died and several hundred have been
VOA标准英语2008年（十月）
Grammar Girl here. Today's topic is the serial comma. Here's a listener: Hi, Grammar Girl. This is Patti from Houston... Patti and her friends are debating about the serial commathe comma that comes before the final conjunction in a list. Here's a se
英语语法 Grammar Girl
1. The Bluefin 21 Autonomous Underwater Vehicle completed its first deep sea search for the missing Malaysian jet. The 6 hours of searching information gathered by the AUV will be analyzed whether permitting the AUV will be launched again to continue
美联社新闻一分钟2014(四)月
'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the
VOA标准英语2011年(八月)
In reaffirming the greatness of our nation, we understand that greatness is never a given. It must be earned. Our journey has never been one of short-cuts or settling for less. It has not been the path for the faint-hearted-for those who prefer leisu
偶像励志英语演讲
JUDY WOODRUFF: The discovery of the debris raises many questions. And we look at some of them now with Van Gurley, a retired naval oceanographer whose company, Metron, helped investigators eventually find Air France Flight 447 after it crashed in the
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