dudKK [dʌd] /dʌd/发音名词1失败之作、劣品、没用的东西口语The movie was a complete dud at the box office.这部电影在票房上完全是个失败之作。2哑弹、未爆弹Several shells turned out to be duds and never exploded.有好几颗砲弹是哑弹,始终没有爆炸。3无能的人、不中用的人口语,贬义He felt like a dud after failing the exam twice.连考两次都没通过后,他觉得自己很不中用。形容词1无用的、坏掉的、不管用的口语I threw away the dud batteries in the drawer.我把抽屉里坏掉的电池丢了。用这个字练口说→