guide·line /ˈgaɪdˌlaɪn/
 指導路線


 guideline
      n 1: a light line that is used in lettering to help align the
           letters
      2: a detailed plan or explanation to guide you in setting
         standards or determining a course of action; "the
         president said he had a road map for normalizing relations
         with Vietnam" [syn: road map]
      3: a rule or principle that provides guidance to appropriate
         behavior [syn: guidepost, rule of thumb]