common porpoise

• 大西洋鼠,海豚

common porpoise的用法和样例：

例句

1. The porpoise plays before a storm.
   海豚嬉水，风暴要起。
2. Forms compact schools much preyed upon by larger fishes, common dolphins and birds.
   形成紧密的鱼群被较大的鱼，一般的海豚与鸟大量捕食。