quack-quack的用法和樣例：
例句
用作名詞 (n.)
- Quack, quack, quack, quack, quack.
嘎嘎，嘎嘎，嘎嘎，嘎嘎，嘎嘎。 - When hit by a snowball, the snowmen and igloos disappear in a puff of powder, the penguins flip upside down with a quack, and the robots collapse into a heap of metal.
若被雪球擊中，雪人與小屋會噗噗然消失於粉末之中，企鵝會嘎嘎然栽個大跟斗，而機器人則頹頹然變成一堆廢鐵。 - What looks like a duck may not quack like a duck.
什麼看起來像一隻鴨子未必庸醫像鴨。
辭彙搭配
- quack effect 電離層回波效應,反射...
- quack grass 偃麥草
- quack doctor 蒙古大夫
