quacks

abbr.

quacksalvers 庸医，骗子(16世纪习惯用水银或汞治疗梅毒的人)；

n.

江湖医生( quack的名词复数 )；江湖郎中；（鸭子的）呱呱声；

v.

（鸭子）发出嘎嘎声( quack的第三人称单数 )；

1. 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
2. She discovered that the man was a quack.
   她发现那人是个庸医。
3. The quack was stormed with questions.
   江湖骗子受到了猛烈的质问。

1. 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。

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

[Quacks]
Wise Quacks
Quacks: Fakers and Charlatans in English Medicine.
Quacks, lemons, and self regulation: A welfare analysis
Quacks, Lemons, and Licensing: A Theory of Minimum Quality Standards
Snarls, Quacks, and Quarrels: Culture and Structure in Political Process Theory
Images of physicians in literature: from quacks to heroes
Synapse formation: if it looks like a duck and quacks like a duck ....
Episodic recollection in animals: “If it walks like a duck and quacks like a duck…”
"If it looks like a duck, walks like a duck, and quacks like a duck...it must be a duck": anticoagulation in stroke patients with su...