Eng

Problem...

問

Ask, Inquire, Problem, Question

難

Complex, Difficult, Disastrous, Hard, Not easy, Prefix Used As, Problem, Problematic, Rebuke, Reprimand, Suffer

問題

Concern, Concerns, Problem, Problems, Question, Questions

出難題

Problem

(Challenge, Puzzle)

疑難

Problem, Puzzle, Question

麻煩

Annoyed, Bother, Hassle, Hassles, Make trouble, Problem, Problems

的問題

Problem, Problems, Question, Questions

(Concern, Concerns)

漏子

Flaw, Funnel, Mess, Problem, Trouble, Vulnerability

難題

Challenge, Problem, Puzzle