swimming fins
游泳脚蹼 swim fin ; flippers ; Swimming webs ; swimming flippers
游泳用鸭脚蹼 Flippers for swimming ; swimming webs ; duck flippers for swimming
游泳手蹼 swimming flippers
鸭子的脚长有游泳用的蹼。
Ducks have webbed feet to help them swim.
youdao
因为它常在水里游泳，所以它脚上有蹼。
Because it often swims in water so it has webs on its feet.
瓣蹼鹬瓣蹼鹬科的一种小型涉水禽鸟，类似矶鹞，但长有适于游泳的足蹼。
Any of several small wading birds of the family Phalaropodidae, resembling sandpipers but having lobed toes that enable them to swim.
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