短語(yǔ)詞組用作動(dòng)詞 (v.)～+名詞undermine authority 破壞威信undermine bank 沖刷堤基undermine confidence 喪失信心undermine friendship 破壞友誼undermine health 損害健康undermine strength 削弱力氣短語(yǔ) 返回 undermines