/flæɡ/ n.1.+of country, organization旗；旗帜They had raised the white flag in surrender.他们举白旗投降了。
The referee waved his flag.裁判挥起了旗子。
under a flag打着某种旗号；以某种名义Joining John Whitaker will be his brother Michael also riding under the British flag.约翰•惠特克将与他的兄弟迈克尔一起代表英国参加这场马术比赛。
The airport was opened by Canadian troops operating under the flag of the United Nations.机场由加拿大军队以联合国名义开放。
flag of convenience方便旗2.(small paper flag)(公益募捐日销售的)小旗子3.【计】标志4.=flagstone¹5.(on dog)(塞特等犬种尾巴下侧的)旗形羽状饰毛6.+of deer鹿尾7.(on taxi)(出租车计价器上可抬起表示待租的)旗形标志8.【经】(图表上用以表示剧烈变动的)旗状标志9.(plant)具长剑状叶的植物；(尤指)黄菖蒲10.(leaf)旗叶；剑叶；(尤指)黄菖蒲叶11.the flag【足，橄】(Australian Rules premiership)澳大利亚橄榄球联赛12.to fly the flag for sth+ country, organization支持…；为…摇旗呐喊Don't expect him to be flying the flag for his home country.不要指望他支持自己的祖国。
13.to lower the flag(relinquish command)(舰队将领)降旗离职(submit or surrender)降旗投降14.to show the flag(assert claim by military presence)(通过军事存在)宣示主权<非正式>(make an appearance)露面；亮相I suppose we ought to show the flag.我觉得我们应该露面。