疑难问题 yínánwèntí knotty problem Definitions Defs Origin Strokes Stroke Words Sentences Sents 疑难问题 (疑難問題) yínánwèntí knotty problem a complex or difficult problem that is hard to resolve or understand Sources Definitions CC-CEDICT
疑难问题 (疑難問題) yínánwèntí knotty problem a complex or difficult problem that is hard to resolve or understand Sources Definitions CC-CEDICT
