劍橋詞典to spoil something or make it weaker so that it is less effective 損害，削弱 A recurring knee injury may have impaired his chances of winning the tournament . 復(fù)發(fā)的膝傷可能降低了他在錦標(biāo)賽中獲勝的機(jī)會(huì)。 返回 impair