これ は 何なん です か?kore wa nan desu ka?What is this?Breakdown of kore wa nan desu ka?はwatopic particleこれkorethis (one) pronoun何なん です か?nan desu ka?What is it?Elon.io is an online learning platformWe have hundreds of Japanese lessons and thousands of exercises.Start learning Japanese nowNihon-shiki romanizationwatasi ha tyuugoku kara kimasitaHepburn romanizationwatashi wa chuugoku kara kimashita