oceanarium

1. 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。

o.cean.ar.i.um

n.（名词）
【复数】 o.cean.ar.i.ums 或 o.cean.ar.i.a [-ô-…]
A large aquarium for the study or display of marine life.
海洋水族馆：研究或陈列海洋生物的巨大水族馆