鸭子叫quack,duckquack

绿头鸭的外形特征,地理分布,生活习性,生长繁殖,相关研究,保护现状
翻过了小山,去了远远的地方 daddy duck said "quack quack quack
鸭妈妈说 "quack, quack, quack, quack." "嘎,嘎,嘎,嘎.
little duck says quack
the hills and far away翻过小山走了很远mother duck said "quack