资料来源 : pyDict

高高兴兴地

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Cheerfully \Cheer"ful*ly\, adv.
   In a cheerful manner, gladly.

资料来源 : WordNet®

cheerfully
     adv : in a cheerful manner; "he cheerfully agreed to do it" [ant:
           {cheerlessly}]