Ject对"porpoise" 的正确翻译：n. 海豚。发音：['pɔ:pəs]。例句参考：As the turtle swims across the oceanarium, the first porpoise swoops down from above and butts his shell with his belly. - 当海龟游过水族馆时，第一只海豚从上方猛扑下去，并用腹部撞击龟壳。；