英语音标：[kwæk]
美语音标：[kwæk]

n.(鸭子)嘎嘎叫声；庸医；冒充内行的人

v.嘎嘎地叫；大声闲谈；冒充内行

adj.骗人的

用作名词 (n.)

A duck's quack doesn't echo and no one knows the reason. 鸭子呱呱叫是不会产生回音的

She discovered that the man was a quack. 她发现那人是个庸医。

The quack was stormed with questions. 江湖骗子受到了猛烈的质问。

用作动词 (v.)

He landed among the tame ducks, and began to waddle around and quack merrily. 他落在了家鸭群中,开始四处踱来踱去,欢叫个不停,还吃起了地上的谷物。

用作形容词 (adj.)

He was told that it's a quack medicine. 他被告知这是假药。

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