mindmap root((一个八卦迟钝妒忌报复的对手)) opponent implies little more than position on the other side, as in a debate, election, contest, or conflict: ~s of the project cite cost as a factor. antagonist implies sharper, often more personal opposition in a struggle for supremacy: a formidable ~ in the struggle for corporate control. adversary may carry an additional implication of active hostility: two peoples that have been bitter ~ies for centuries. (hostility敌对、恶意，是指公开强烈的恶意open and strong ill will，往往表现出攻击侵略aggression and attack，如a history of hostility between the two nations两国长期敌对)