marine mammal

• 海洋哺乳动物

marine mammal的用法和样例：

例句

1. Marine mammals generally swim with the current.
   海洋哺乳动物一般顺水而游。
2. Marine mammals are wowing researchers with more than just circus tricks.
   海洋哺乳动物不仅仅会马戏团特技，令研究人员倍感惊奇。