per·mis·si·ble /pɝˈmɪsəbəl/
  (a.)可允許的,可容許程度的
  permissible
  禁用的; 不允許的
  permissible
  允許
  Per·mis·si·ble a. That may be permitted; allowable; admissible. -- Per*mis*si*ble*ness, n. -- Per*mis*si*bly, adv.
  ◄ ►
  permissible
       adj 1: that may be permitted especially as according to rule;
              "permissible behavior in school"; "a permissible tax
              deduction" [ant: impermissible]
       2: that may be accepted or conceded; "a kind of speculation
          that was permissible in cosmology but inadmissible in
          medicine"