"She does not introduce me to her brother."
Translation:Ella no me presenta a su hermano.
I entered "al su hermano" and duolingo said that was wrong. I think I might understand my incorrect answer would be "present me to THE her brother" instead of "present me TO her brother". So I learned a subtle distinction in grammar. If you would like to add observations please do that, thanks.
I translated the sentence "She does not introduce me to her brother." into "Ella no le me presenta a su hermano." Isn't that the same as "Ella no me presenta a su hermano."? Or am I wrong? I just finished the lessons on object pronouns recently, so maybe I am confused.