Vita:疑难

CC-CEDICT

疑難 疑难 [yi2 nan2] /hard to understand/difficult to deal with/knotty/complicated/

Handedict

疑難 疑难 [yi2 nan4] /problematisch (u.E.) (Adj)/

CFDICT

疑難 疑难 [yi2 nan2] /indécis/difficile/épineux/