He looked so wistful as he went away, hearing the frolic and evidently having none of his own.

他走的时候似乎闷闷不乐，若有所思；他听到你们在玩闹，而显然他自己没什么玩的。

youdao

Tourists sunbathe and frolic in the ocean.

游客们晒日光浴，在海水中嬉戏。

《柯林斯英汉双解大词典》

The word frolic seems to me forever associated with Newfoundland.

对我来说，frolic这个词永远都是与纽芬兰联系在一起的。

youdao

In Miami, the Dolphins frolic in the Pro Player Stadium, named after an underwear manufacturer whose elastic has snapped.

ECONOMIST: Civic trophies

This meant the hottest part of the day - the hours after lunch - were spent sitting on the beach watching the foreign kids frolic in the surf.

BBC: An Italian's view on British winter clothes

Nobody could deny the weight of his research yet he skips lightly over anything he finds boring, the better to frolic in absurdity.

ECONOMIST: Renaissance advice books