work cattle

美

英

英汉

un.

1.

役用牛

1.	役用牛畜牧疾病学名... ... wooly pod vetch;Viciadasycarpa 毛荚苕子 work cattle;drafa cattle 役用牛；挽牛 work efficiency 工作效率 ... www.docstoc.com\|基于4个网页
2.	挽牛 59畜牧学_馆档网 ... "役用动物"," draft animal" "役用牛;挽牛"," draft cattle;work cattle" "通风室"," draft chamber" ... www.guandang.com\|基于2个网页