quack
[kwæk] verb intransitive
■to make the usual sound of a duck （鸭子）呱呱叫，嘎嘎叫•The ducks started quacking loudly when we threw them some bread.当我们向那些鸭子扔面包时，它们便呱呱地大叫起来。
[kwæk] noun countable
PERSON 骗子 disapproving
■a person who dishonestly pretends to have medical skills or knowledge 冒牌医生，江湖医生，庸医，江湖郎中
■UK informal often disapproving
■a doctor 医生•Have you seen a quack about that cough?你去医生那儿看咳嗽了吗？
[kwæk] noun countable
SOUND 声音
countable
■the sound that a duck makes （鸭子）呱呱的叫声，嘎嘎的叫声 |