vitiate
v[Tn]
(fml 文)
1 weaken or spoil the quality or efficiency of (sth) 削弱或損害(某事物)的性質(zhì)或效能; 使(某物)變質(zhì); 敗壞(某物)
the vitiated atmosphere of our polluted inner cities 我們市中心區(qū)受到污染的惡濁的空氣
The serum is vitiated byexposure to the air. 血清暴露在空氣中已變質(zhì).
2 weakenthe force of (sth); make ineffective 削弱(某事物)的力量; 使無效
vitiate a claim, contract, theory 使權(quán)利要求、 合同、 理論無效.