saltwater

咸水的、海水的

Most saltwater fish cannot survive in a freshwater tank.

大多数咸水鱼无法在淡水鱼缸里存活。

海上的、近海的

He has spent thirty years in the saltwater fishing industry.

他在海钓渔业工作了三十年。

咸水、海水、盐水

Saltwater had seeped into the wells near the coast.

海水已经渗入靠近海岸的水井。