blue flag

美

英

权威英汉双解

blue flag

1.	蓝旗（赛车中用以示意后方有领先车手试图超车）a blue flag used in motor racing to show that a driver who is much further ahead is trying to pass

2.	（为欧洲清洁安全的海滩颁发的）“蓝旗”奖an award given to beaches in Europe that are clean and safe

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