like: knifflig → →
schwierige Problem, knifflige Frage ☊ 
难题 ☊ knifflig knifflig small and of little importance knifflig a fiddling sum of money knifflig a footling gesture knifflig our worries are lilliputian compared with those of countries that are at war knifflig a little (or small) matter knifflig a dispute over niggling details knifflig limited to petty enterprises knifflig piffling efforts knifflig giving a police officer a free meal may be against the law, but it seems to be a picayune infraction schwierige Problem, knifflige Frage ☊ 难题 ☊