over·sim·pli·fy /-ˈsɪmpləˌfaɪ/
  (vt.)(vi.)(使)過分地單純化
  oversimplify
       v 1: simplify to an excessive degree; "Don't oversimplify the
            problem"
       2: make too simple; "Don't oversimplify the instructions"
       [also: oversimplified]