重重 chóngchóngzhòngzhòng one after another Origin Definitions Defs Strokes Stroke Words Sentences Sents 困难重重 kùnnánchóngchóng full of difficulties describes a situation where there are many layers or instances of difficulties and obstacles.心事重重 xīnshìchóngchóng preoccupied to have a lot on one's mind; to be laden with anxiety