随着鼓点的欢快节奏，小狗兴奋地跳起舞来。

The puppy danced excitedly to the cheerful ___rub-a-dub-dub of the drum.

孩子们听到这首欢快的rub-a-dub-dub童谣时都咯咯笑了起来。

The children giggled when they heard the playful ___rub-a-dub-dub nursery rhyme.