with no result or effect; pointlessly
無結(jié)果地，無成效地，徒勞地
relevant or useful
與本題有關(guān)的，得要領(lǐng)的，合適的；有用的
you may have heard something from them which is to the purpose.
你或許已從他們那兒聽到了一些有關(guān)的事情。
Intentionally; deliberately.
故意地；有意地
With good results.
有益地，有成效地
With few or no results.
幾乎徒勞的，少有成效地