资料来源 : pyDict

有节奏地;照拍子地

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

Rhythmically \Rhyth"mic*al*ly\, adv.
   In a rhythmical manner.

资料来源 : WordNet®

rhythmically
     adv : in a rhythmic manner; "the chair rocked rhythmically back
           and forth"