孩子们穿着防水裤在浅滩上玩耍，他们是一群快乐的小涉水者。

The kids in waterproof pants are happy little ___waders playing in the shallow stream.

这些涉水靴能让你在浅滩里行走而不弄湿衣服。

These ___waders keep you dry while walking in shallow water.

湖边那只长腿涉禽正在捕鱼。

The long-legged ___wader is fishing by the lake.