雅思口语同义词替换总结答:9、认为:Think, believe, insist,maintain, assert, conclude,deem, hold,argue,be convinced, be firmly convinced, be fully convinced 雅思口语同义词替换总结2 10、保护:Protect, conserve, preserve 11、确保:Assure, ensure, guarantee, pledge 12、有害的:Bad, baneful evil, harmful, detrime...