conversion dimension / 基础价格变更Base Price Change产品基础订阅价格或费率本身发生的变更，而非临时折扣。Related contentRelationships come from the local knowledge graph and include reverse links.Offer & Campaign Context优惠与活动语境组织价格优惠、计费周期、身份折扣、召回和节日活动等促销语境维度值。Related