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。

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。