Advertising activity is not only an economic activity, but a cultural interflow as well.

广告活动不仅是一种经济活动，还是一种文化交流。

TheEconomic Person refers to any subject involved in an economic activity, and is a personification of economic actions.

“经济人”泛指的是一切参加经济活动的主体，它体现着一切经济行为的人格化。