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Study: Rats Pose Plague Risk in Croplands Efforts to boost food production in East Africa may increase the risk of plague. A new study says the conversion of natural lands into croplands in Tanzania has been accompanied by a large increase in the rod
VOA标准英语2015年(二月)
Pre-Listening Vocabulary accustomed to: used to tirelessly: without tiring; for long hours surge barrier: man-made protection built to keep the sea from flooding onto the land valve: a device that opens and shuts; changes the direction of fluid Nethe
趣谈英语
Drylands Vulnerable to Climate Change Researchers warn that the worlds drylands are being severely affected by climate change. They say that could harm the livelihoods and food security for billions of people. Scientists describe the projected effect
VOA标准英语2014年(十一月)
DAVID GREENE, HOST: One of the very first moves by the new Republican Congress was to make it easier to transfer ownership of federal public lands in the West over to states. And the state of Wyoming has become a flashpoint in this debate. Lawmakers
2017年NPR美国国家公共电台1月
By Gilbert da Costa Abuja 16 October 2006 An international campaign to draw attention to the huge agricultural potential of the Sahel drylands of Africa is gaining ground, with a recent workshop in Niamey, the capital of Niger. The campaign seeks to
2006年VOA标准英语（十月）
A diamond worth ?12,000 was shot into space this morning - and whoever finds it when it lands back on earth gets to keep it. 今天早晨一颗价值1万2千英镑的钻石被送入太空，在它落地后，谁能找到它，它就归谁。 A diamon
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