trouble与problem的区别?

trouble与problem的区别? Questionquestion problem matter与trouble的区别 problem trouble的区别 problem和trouble的区别 big trouble和 big problem的区别 matter problem trouble wrong的区别 trouble problem question matter 的区别 problem.question,trouble,difficulty的区别? problem,trouble,matter,question的区别 difficulty,trouble,problem,quesfior的区别 difficulty,problem,trouble,question的区别 trouble problem区别