ir·re·press·ible /-ˈprɛsəbəl/
  (a.)鎮壓不住的,抑制不住的
  Ir·re·press·i·ble a. Not capable of being repressed, restrained, or controlled; as, irrepressible joy; an irrepressible conflict.
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  irrepressible
       adj : impossible to repress or control; "an irrepressible
             chatterbox"; "uncontrollable laughter" [syn: uncontrollable]