con·tin·u·al /kənˈtɪnjuəl, jəl/
  (a.)持續不斷的,繼續的
  Con·tin·u·al a.
  1. Proceeding without interruption or cesstaion; continuous; unceasing; lasting; abiding.
     He that is of a merry heart hath a continual feast.   --Prov. xv. 15.
  2. Occuring in steady and rapid succession; very frequent; often repeated.
     The eye is deligh by a continental succession of small landscapes.   --W. Irwing.
  Continual proportionals Math., quantities in continued proportion.
  Syn: -- Constant; prepetual; incessant; unceasing; uninterrupted; unintermitted; continuous. See Constant, and Continuous.
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  continual
       adj 1: seemingly without interruption; chiefly restricted to what
              recurs regularly or frequently in a prolonged and
              closely spaced series; "the continual banging of the
              shutters" [ant: sporadic]
       2: `continual' (meaning seemingly uninterrupted) is often used
          interchangeably with `continuous' (meaning without
          interruption)