出现chūxiànchūxiànto appear; occurUsages of chūxiàn问题wèntí 出现chūxiàn 了le。wèntí chūxiàn le.A problem has appeared.这个zhège 问题wèntí 常常chángcháng 出现chūxiàn。zhège wèntí chángcháng chūxiàn.This problem often occurs.Elon.io is an online learning platformWe have an entire course teaching Chinese grammar and vocabulary.Start learning Chinese now