单词：livestock husbandry
单词：livestock husbandry 相关文章
Lucky Livestock Go to Maryland Animal Sanctuary Welcome to American Mosaic from VOA Learning English. Im Kelly Jean Kelly. On the show today, we play music on a new album from Sean Kingston. We also answer a question about casinos in the United State
2013年VOA慢速英语(十)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Seventy percent of all antibiotics in this country go to livestock like pigs and chickens. And concern is growing about drug-resistant bacteria that sp
Scientific American(三)月
By Tom Rivers London 23 August 2007 Vigilance and early containment of foot and mouth disease in Britain have paid off as European vets agree to lift the export ban on British meat and livestock. For VOA, Tom Rivers in London has details. A ruptured
2007年VOA标准英语（八月）
Animals in many large livestock-raising operations around the world get a small but steady dose of certain antibiotics in their feed. U.S. health officials say there is unequivocal evidence of a link between overuse of antibiotics in healthy livestoc
VOA标准英语2010年(七)月
land,soil 土壤 arable land, tilled land 耕地 dry soil 旱田 fertile soil 沃土,肥沃的土壤 humus 腐殖质 irrigable land 水浇地 lean soil, poor soil 贫瘠土壤 wasteland, barren land 荒地 grass 草 grassland 草地 meadow 草甸 prairie 大草原 pasture land 牧场
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