quack造句

Why do intelligent people find quack remedies so appealing?
为什么聪明人会被江湖医术所吸引?

Suddenly he heard a quack.
他突然听见一声嘎嘎的叫声。

He describes himself as a doctor, but I feel he is a quack.
他自称是医生, 可是我感觉他是个江湖骗子.

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