otter

例句：

1. 1. Otters are known for their playful and curious nature.
   海狸以其活泼好奇的天性而闻名。
2. 2. The otter is a species of mammal native to North America.
   水獭是北美的一种哺乳动物。
3. 3.Otters are often seen swimming in the nearby lakes.
   经常可以看到水獭在附近的湖里游泳。