基本解释（美）[脊椎] 石山羊同根派生 Rocky Mountain goat相关词英英字典柯林斯英英字典 a sure-footed goat antelope, Oreamnos americanus, inhabiting the Rocky Mountains. It has thick white hair and black backward-curving horns Rocky Mountain goat剑桥字典Rocky Mountain goat柯林斯字典专业释义生物學石山羊