Paid and owned media are controlled by marketers promoting their own products. For earned media, such marketers act as the initiator for users' responses.

营销人员通过付费和自有媒介推销其产品，而在" 无偿" 媒介方面，营销人员就像是触发用户响应的初始催化剂。

For earned media , such marketers act as the initiator for users' responses.

对于免费媒体，此类营销人员充当用户响应的发起者。