vitiate /'vifieit;'viji,et/ vt [VP6A] lower the quality of; weaken or destroy the force of: 降低…的品質(zhì); 削弱或破壞…的力量; 汚損; 敗壞 ~d blood; 汚血; the ~d air of an overcrowded room. 過分擁擠之房間內(nèi)的混濁空氣。 This admission ~s your argument/cliam. 這項供認減弱了你的論據(jù) (權(quán)利要求). 的力量。