noun [专属名词]（鸭子的）呱呱声，嘎嘎声；庸医，江湖郎中；<非正式>医生
If you call someone a quack or a quack doctor, you mean that they claim to be skilled in medicine but are not.
庸医; 江湖医生
verb [vi. 不及物动词]（鸭子）呱呱叫，嘎嘎叫；<非正式>大声说蠢话，咭咭呱呱
There were ducks quacking on the lawn.
有鸭子在草坪上发出嘎嘎的叫着。
庸医骗完钱就很快消失
单词造句:
- 网友用“Quack”造句精选
- Suddenly he heard a quack. 突然，他听到嘎的一声。
- I went everywhere for treatment, tried all sorts of quacks. 我为求医走遍了每一寸土地，尝试了所有江湖医生的疗法。
- Quack, quack, quack. Walk like us! 嘎嘎嘎，像我们一样走路！
- I am a duck Quack quack . 我是一只鸭子，嘎嘎。