in·for·ma·tive /ɪnˈfɔrmətɪv/
  (a.)情報的,使知道消息的,見聞廣博的
  informative
  *資訊
  In·form·a·tive a. Having power to inform, animate, or vivify.
  ◄ ►
  informative
       adj 1: tending to increase knowledge or dissipate ignorance; "an
              enlightening glimpse of government in action" [syn: enlightening,
               instructive] [ant: unenlightening]
       2: serving to instruct of enlighten or inform [syn: instructive]
          [ant: uninstructive]
       3: providing or conveying information [syn: informatory]
          [ant: uninformative]