这zhè 是shì 唯一wéiyī 的de 问题wèntí。zhè shì wéiyī de wèntí.This is the only problem.Breakdown of zhè shì wéiyī de wèntí.是shìshìto be这zhèzhèthis的dedestructural particle问题wèntíwèntíproblemElon.io is an online learning platformWe have an entire course teaching Chinese grammar and vocabulary.Start learning Chinese now