This is the 14035th most frequent Korean word.
매체를
"매체를" means "media" or "medium" (in the accusative case).
Here, '매체를' (through media) is a direct object denoting the medium or channel through which information is obtained.
매체를 통해 정보를 얻습니다.
I obtain information through media.
In this sentence, '매체를' highlights the medium utilized for the purpose of creating advertisements.
그 매체를 이용하여 광고를 제작했습니다.
They created an advertisement using that medium.
Here, '매체를' serves as the object of the action of selecting a medium for communication or other purposes.