Fast 词形变化 Fasts 复数 Fasts 释义与例句 name 1. A surname. 相关短语 fast track n. 快车道; 快行道 hard and fast 严格的, 搁浅的 fast food n. 速食; 快餐 fast break 快攻 fast bowler 快速球投手 fast yellow AB fast busy signal fast asleep 熟睡的; 很快地入睡 fast company fast rope fast tracks fast tracking fast tracked fast forward n. 快进键, 快进按钮 v. （使录像带或录音带）快速进带, 快进