find out
1．discover； learn发现；查出
The teacher was very angry when he found out that the student had been cheating．老师发现那个学生作弊极为气愤。
As soon as all the facts have been found out， we can begin to formulate a theory．全部事实一经查明，我们就能着手提出一个意见。
She will find out all his secrets．她将发现他所有的秘密。
The burglars were trying to find out how to open the safe．夜盗想发现怎样打开保险柜。
2．make enquiries about打听
Will you try to find out when the trains leave？请设法打听一下火车发车的时间好吗？
Can you find out Mr Johnson's address for me？你能帮我查一下约翰逊先生的地址吗？
Please ring him up and find out about the plans for the summar vacation．请给他打个电话，问问他打算如何度暑假。