问清楚
ask so that one is clear about something
问不出
be unable to ask
问不出所以然来
be unable to ask the reason why
用不着问
have no need to ask
再问一遍
ask again
问遍所有的人
ask everyone
不懂就问。
Ask if you don't understand.
答非所问
give an irrelevant answer
这话问不出口来
couldn't ask this
问一问也没有关系。
It's no problem. Just ask.
你为什么不问问人。
Why doesn't he ask someone?
他已经问过我这事件。
He's already asked me about this matter.
她什么都要问，一直问到底。
She asks about everything until she gets to the bottom of things.