congratulatory
  (a.)慶祝的,祝賀的
  Con·grat·u·la·to·ry a. Expressive of sympathetic joy; as, a congratulatory letter.
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  congratulatory
       adj : expressive of sympathetic pleasure or joy on account of
             someone's success or good fortune; "a congratulatory
             telegram"; "the usual congratulatory crowd was
             conspicuously absent"; "a gratulatory address" [syn: gratulatory]