The point is that "swing" has some interesting swinging effect.

重点是“荡“制造出很有趣的感觉。

耶鲁公开课 - 现代诗歌课程节选

swinging a baseball bat at me on the subway train for no reason, except that he's crazy.

他在地铁上无端地朝我挥动棒球拍，没有理由，除非他疯了。

向哥伦布学习 - SpeakingMax英语口语达人