游泳者在悉尼的淡水海滩清澈的海浪里划水。

Swimmers paddle in the clear surf of Sydney's Freshwater Beach.

youdao

他们用鱼叉在开阔的洋面猎取鲔鱼，在海滩捕杀海豹，并开发在淡水流域洄游的鲑鱼资源。

They harpooned tuna in the open ocean, killed seals on the beaches, and exploited seasonal runs of salmon in the rivers.

youdao