英汉例句雙語例句A genus of the family Dugongidae comprising only Steller's sea cow .僅由斯氏海牛搆成的懦艮科的一個屬。A family of mammals of order Sirenia including dugongs and Steller's sea cow .哺乳動物中海牛目中一科包括儒艮和斯特勒儒艮。steller's sea cow更多例句词组短语短語Steller 's Sea Cow 大海牛;無齒海牛;北海牛;斯特拉海牛steller's sea cow更多词组