I'm still not sure what you mean, but I'll take another stab at it. * "Medium Services" is defined earlier in the text as > Medium’s sites, services, mobile a

I'm still not sure what you mean, but I'll take another stab at it. * "Medium Services" is defined earlier in the text as > Medium’s sites, services, mobile apps, products, and content which seems pretty self-explanatory to me. * They give some examples of what they do with your content in the rest of the paragraph you quoted. To paraphrase a little, they can show your content to others, put ads next to it, and include it when promoting Medium itself. * You can post your content elsewhere, even if you posted it to Medium (hence "nonexclusive"). * You can delete your content from Medium.