n.水獭
otter的复数

原形：otter复数：otters

The otter slipped into the water, its sleek body moving effortlessly.
这只水獭滑入水中，光滑的身体轻松游动。
Otters are known for their playful behavior in the wild.
水獭以在野外的嬉戏行为而闻名。
A group of otters is called a "raft," when they float together on their backs.
一群水獭浮在背上，被称为“筏”。
The river otter is an indicator species for a healthy aquatic ecosystem.
河狸是水生生态系统健康的指示物种。
Otters use rocks to crack open shellfish for food.
水獭用石头砸开贝壳获取食物。
The sea otter is the smallest marine mammal in the world.
海獭是世界上最小的海洋哺乳动物。
Otter fur is incredibly dense, with up to a million hairs per square inch.
水獭的皮毛非常密集，每平方英寸可达一百万根毛发。
They have webbed feet that aid them in swimming and diving.
它们有蹼足，有助于游泳和潜水。
Otters can often be seen grooming themselves, using their paws to clean their fur.
经常可以看到水獭用爪子清洁皮毛，进行自我梳理。
Conservation efforts have helped to stabilize declining otter populations in some areas.
保护工作已帮助一些地区的水獭种群数量趋于稳定。