1.

1. Good humor is a promoter of friendship.
    良好的幽默感能促进友谊。

1. （尤指体育赛事的）主办者，承办者
    A promoter is a person who helps organize and finance an event, especially a sports event.

    e.g. ...one of the top boxing promoters in Britain.
           英国最顶尖的拳击比赛主办者之一

2. 提倡者；倡导者
    The promoter of a cause or idea tries to make it become popular.

    e.g. Aaron Copland was an energetic promoter of American music.
           阿伦·科普兰从来都是美国音乐的积极倡导者。

1. someone who is an active supporter and advocate

    Synonym: boosterplugger

2. a sponsor who books and stages public entertainments

    Synonym: showmanimpresario