“飞快的”用英语怎么说？

飞快的小汽车a zippy little car作为回敬, 这位警察的脖子上挨了飞快的一拳.In return, a swift fist landed on the officer's neck.腰间别了一把磨得飞快的匕首.Lying hidden at her waist, was a sharpened dagger....