Here are some examples:
* "The company's success is primarily due to its innovative products." This means that innovative products are the most important reason for the company's success, even if other factors might also play a role.
* "She is primarily a writer, but she also works as a teacher." This means that writing is her main profession, but she also has another job.
* "The study focuses primarily on the effects of climate change on agriculture." This means that the study focuses mainly on agriculture and its relationship to climate change, although other aspects might be touched upon.
Essentially, "primarily" helps to highlight the most relevant or important aspect of something, even if other elements are also present.