The German Holstein cows rank among the world's best of Holstein breed.
The German Holstein cows rank among the world's best of Holstein breed.
德国的荷斯坦奶牛是世界最好的荷斯坦种群。
The German Holstein cows rank among the world's best of Holstein breed.
德国的荷斯坦奶牛是世界最好的荷斯坦种群。