tu-whit

例句：

1. 1. The beavers are building a dam in the river.
   河狸们正在建造一座大坝。
2. 2. Otters are known for their playful and curious nature.
   海獭因其活泼好奇的天性而闻名。
3. 3. Beavers are excellent swimmers and can live up to 50 years.
   河狸是优秀的游泳者，可以活到50年。