on the face of it
  乍看上去,從表面上看
  on the face of it
       adv : from appearances alone; "irrigation often produces bumper
             crops from apparently desert land"; "the child is
             seemingly healthy but the doctor is concerned"; "had
             been ostensibly frank as to his purpose while really
             concealing it"-Thomas Hardy; "on the face of it the
             problem seems minor" [syn: apparently, seemingly, ostensibly]