sirenia
中文翻译
海牛目
英文解释
n. pl. An order of large aquatic herbivorous mammals,
including the manatee, dugong, rytina, and several fossil genera.
常见例句
1
sirenian tusked mammal found from eastern Africa to Australia
2
sirenian mammal of tropical coastal waters of America
3
A genus of large edentulous sirenians, allied to the dugong and manatee, including but one species (R