ferret out

动词 ferret out:

1. search and discover through persistent investigation
   同义词：ferret

1. The detective ferret out the criminal.
   那位侦探把犯人搜出来了。
2. See if you can ferret out any information about his past that we can use to discredit him.
   看看你能否查获我们可以用来使他名誉扫地的历史记录。