1. 大海牛;海牛：谢德兰小型马 Shetland pony | 大海牛;海牛 sea cow | 苏格兰猎鹿狗 Scottish deerhound
2. 海牛,海象：rhinoceros 犀牛 | sea cow 海牛,海象 | sheep 绵羊
noun
1. danci.911cha.com
1. any of two families of large herbivorous aquatic mammals with paddle-shaped tails and flipper-like forelimbs and no hind limbs
Synonym: sirenian mammal sirenian