Serial killers tend to use same method to murder each time, refining their technique based on previous crimes.

连环杀手每次都倾向于使用相同的方法进行谋杀，并根据以前的罪行改进他们的技术。

Now, you can't use this method all the time, but you can certainly use this method some of the time, and ask a question correctly and really easily.

现在，你不能一直使用这种方法，但你肯定可以在某些时候使用这种方法， 并且正确且非常轻松地提出问题。