the characteristic harsh sound made by a duck
鸭叫声,嘎嘎声。
(of a duck)make this sound
(鸭子)呱呱叫,嘎嘎叫。
〈非正式〉 大声说蠢话,咭咭呱呱。
a person who dishonestly claims to have special knowledge and skill in some field, typically in medicine
冒牌医生,庸医;江湖骗子,冒充内行的人
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[as modifier]
quack cures .假医术。
〈英,非正式〉 医生,郎中。
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quackn.鸭叫声;嘎嘎声;冒牌医生;庸医;江湖骗子;冒充内行的人;郎中;医生
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quickadj.快的;迅速的;急速的;匆匆的;理解得快的;反应快的;学得快的;聪明的;有才智的;短暂的
" mid 16th cent. (as a verb): imitative. mid 17th cent.: abbreviation of earlier