Saltwater fish, and other ocean creatures evolved to be able to drink saltwater to stay hydrated, and get rid of excess salt.

咸水他海洋生物进化到得以摄入盐水吸收水分，并排出余的盐分。

More than 350 bird species and 300 species of fresh and saltwater fish live within the park.

园内有超过350种鸟类300种淡水咸水。

Saltwater fish on the other hand?

盐水呢？

My kids, for Mother's Day, many years ago, gave me an empty little fish tank, which was basically their way of saying, please go buy saltwater fish.

前，我的孩子们在母亲节送给了我一个空的小缸，这基本上是他们在说，请去买海水。