Read Edit View history 疑难问题 yínánwèntí knotty problem Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 疑难问题/疑難問題 · yínánwèntí · knotty problem 2026/03/04 疑难问题 / 疑難問題 yínánwèntí knotty problem a complex or difficult problem that is hard to resolve or understand 专家组正在讨论如何解决这个疑难问题。 created sense Mar 4, 2026, 02:25 AM