fall behind英 [fɔːl bɪˈhaɪnd]美 [fɔːl bɪˈhaɪnd]落后; 跟不上; 不能按时完成(或交付)英英释义verbretreatSynonym:fall backlosedrop offrecedehang (back) or fall (behind) in movement, progress, development, etc.Synonym:lagdawdlefall back双语例句