fast比较级和最高级，fast，fast的比较级是faster，最高级是fastest。fast　英 [fɑːst]   美 [fæst] 　 　adj. 快的；迅速的；紧的；牢固的；放荡的adv. 快速地；紧紧地；放荡地；深深地n. 斋戒；禁食；系泊用具v. 斋戒；禁食The star was whipped into a fast ...