sirenian
adj. 海牛类
近义词：seacow，
英英释义
Noun
- any of two families of large herbivorous aquatic mammals with paddle-shaped tails and flipper-like forelimbs and no hind limbs
例句
- sirenian tusked mammal found from eastern Africa to Australia; 见于非洲东部到澳大利亚的有尖牙的海牛目哺乳动物；
- sirenian mammal of tropical coastal waters of America; the flat tail is rounded 产于美洲热带沿海水域的海牛类哺乳动物
- sirenian tusked mammal found from eastern Africa to Australia; the flat tail is bilobate. 见于非洲东部到澳大利亚的有尖牙的海牛目哺乳动物；扁平的尾巴分两叉。
- sirenian mammal of tropical coastal waters of America; the flat tail is rounded. 产于美洲热带沿海水域的海牛类哺乳动物。