农民认识到除草剂的局限性 Farmers Learning Limits of Popular Herbicide.mp4
www.chaoliupu.com 九年级化学教学工作计划2.rar
为什么说精准农业是一项好投资？ Why 'Precision Agriculture' Is a Good Investment.mp4
深入探究南加州海湾死鱼事件成因 Getting to the Bottom of a Fish Die-Off in Southern California.mp4
美国牛仔帮助俄罗斯建立高质量菜牛种群 An American Cowboy Aims to Help Russia's Beef Herd.mp4
水产养殖即将主导世界鱼类供应 Fish Farms May Soon Supply More Than Half the World's Catch.mp4
园艺：如何种植菊花 In the Garden_ Getting the Most Out of Mums.mp4
逆流的色彩.Upstream.Color.2013.BD.MiniSD-TLF
在花园中如何种植玫瑰 2？ In the Garden_ Getting Started With Roses_2.mp4
循环放牧 Giving Grasslands a Rest.mp4
农业报告 391 VOA Learning English - Agriculture Report # 391.mp4