loon|loons

湖面上有一只潜鸟正在捕鱼。

A ___loon is diving for fish in the lake.

湖面上，几只潜鸟正在优雅地潜水捕鱼。

We watched the ___loons dive gracefully for fish in the lake.

湖面上，一只潜鸟潜入水中捕捉小鱼。

A ___loon dived into the water to catch small fish.