quack

庸医；鸭叫声英释中释na doctor

（鸭子）嘎嘎叫；吹嘘；大声闲聊英释中释vWhen a duck quacks, it makes the noise that ducks typically make

骗人的；冒牌医生的英释中释adjrelating to the activities or medicines of someone who pretends to be a doctor

1 You’d better go and see the quack with that burn..你最好去找医生看看那处烧伤。

2 There were ducks quacking on the lawn..有鸭子在草坪上发出嘎嘎的叫着。