flagsn.旗帜；标志名词flag的复数形式.flagn.旗；旗帜；信号旗vt.(以旗子)标出v.无力地下垂；减退；枯萎flag of necessity权宜旗flag sb. a taxi为某人叫来出租汽车flagellum axoneme鞭毛轴丝flag leaf protein剑叶蛋白质flag-leaf shape剑叶形态flag port control船籍港管理flag of the games会旗flagellated stage鞭毛虫期flagellar antigen鞭毛抗原,h 抗原flagellar rootlet鞭毛小根