problem,question,matter的用法及区别

这三个名词都可以翻译成“问题”,question 指主观存在的“疑惑、疑问”,所以是需要“回答（ answer ）的”； problem 指客观存在的和遇到的疑难问题,有时指较严重的问题,所以是需要“解决（ solve ,work out ）的” matter 表示“事情,麻烦”,指具有某种特征的事例.例如：
You haven't answered my question.你还没有回答我的问题.
His honesty is beyond question.他的诚实无可怀疑.
a key problem ：一个关键问题
The problem was how to move the heavy machinery.
问题是怎样移动这台沉重的机器.
They are discussing how to solve the problem.
他们正在讨论如何解决这个问题.
This is a matter of no account.这是一件无关紧要的事.
I can't see the visitors right now.I have an urgent matter to attend to.
现在我不能接见客人 ,因为我有一件急事要办.
It is still a serious matter that some people drive after having drunk.
一些人酒后驾车仍然是一个严重的问题.