promoter

Compared meaning: a person who actively supports something (noun).

比较义项：为某项事业、活动或团体积极提供支持、推广的人（名词）。

• promoter 本词

  Promoter emphasizes actively organizing, arranging, or funding an event, business venture, or cause, often in a professional or commercial capacity.

  promoter强调主动组织、安排或提供资金以推动一项活动、商业事务或事业，通常带有专业或商业性质。

  As the promoter, he arranged the venue, tickets, and advertising for the boxing match.

  作为发起人，他负责为这场拳击比赛安排场地、门票和广告宣传。

• booster

  Booster emphasizes enthusiastic, vocal support and encouragement for a place, team, or cause, without necessarily organizing anything formally.

  booster强调对某个地方、团队或事业给予热情、公开的支持和鼓励，未必进行正式的组织安排。

  She's a lifelong booster of the local baseball team, cheering at every single game.

  她是本地棒球队的忠实支持者，每场比赛都到场热情助威。

Promoter and booster both mean a supporter, but they differ. Promoter means actively organizing or funding an event or business. Booster means giving enthusiastic, vocal support and encouragement, without organizing anything. Booster can also mean something that strengthens, like a booster shot, not compared here.

这两个词在“支持某项事业”的意义上接近，但promoter更强调主动组织、安排或宣传一项活动或事业，带有专业、商业色彩；booster更强调热情、公开地支持和鼓励某个地方、团队或事业，语气更随和，未必参与实际组织工作。此处不比较booster的其他义项，如“加强剂、助推器”（如booster shot 加强针）。