ˊㄊㄨㄢˊtuán

  1. 許多不能瞭解疑問紅樓夢·》:玉心疑團自然不似先前尋死。」疑雲

doubts and suspicions, a maze of doubts, puzzle, mystery
doutes, soupçons accumulés, suspicion
Zweifel und Verdacht (S)​