dudKK [dʌd] /dʌd/發音名詞1失敗之作、劣品、沒用的東西口語The movie was a complete dud at the box office.這部電影在票房上完全是個失敗之作。2啞彈、未爆彈Several shells turned out to be duds and never exploded.有好幾顆砲彈是啞彈,始終沒有爆炸。3無能的人、不中用的人口語,貶義He felt like a dud after failing the exam twice.連考兩次都沒通過後,他覺得自己很不中用。形容詞1無用的、壞掉的、不管用的口語I threw away the dud batteries in the drawer.我把抽屜裡壞掉的電池丟了。