Before you discover a problem in the process,you have to learn some certain subjects specially.After you make sure where the problem exists,you are required to find some effectively methods to solve that problem.since,that is.once you focused somethings and probed somewhere,you surely find the result of your deed(probing) as called PROBLEM in Enlish world.Problem is the noun of the word:PROBE.
问题与课题的差异与联系 口语化的表达一下60字以内