verb🔗Share使无效，作废. To make invalid. Especially applied to contract law."The new evidence invalidated the contract for the house, meaning the buyer no longer had to buy it. "新的证据使那份房屋买卖合同作废了，这意味着买家不再需要购买这栋房子了。lawbusinessChat with AIVocabulary GamePractice Reading
