A rational system of rotation of herds has been enforced, and efforts have been made to prevent the blind reclamation of wasteland at the expense of grassland.是什么意思_A rational system of rotation of herds has been enforced, and efforts have been made to prevent the blind reclamation of wasteland at the expense of grassland.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句