refer: usually implies the intentional introduction and distinct and specific mention and sometimes judging: ~red to her claims as fantasy.                 三个关键词组成jim吉姆


allude: suggests an indirect mention by a hint, roundabout expression, or figure of speech: ~d to incidents previously unkonwn.           figure of speech修辞手法


advert: usually implies a slight or glancing reference in a text or utterance: a theory ~ed to here but discussed later.


refer提到: 指介绍提到或判断，allude提到: 间接提到，advert提到: 稍微提到


记忆方法: 1) 提及的意思是使注意mean to call or direct attention to something.   3个词都表示提到，介词都用to。refer是基础词，allude偏重间接，advert偏重稍微(广告advertisement是短暂提及)