More than a million were sold in a year, with key markets in Japan, Italy and particularly Sweden, where blue and yellow varieties mimic the national flag.

彩虹玫瑰一年的销量达100多万支，主要销往日本、意大利和瑞典。其中以瑞典最为突出，销往该国的品种蓝黄相间，酷似瑞典国旗。

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Japan Airlines, the nation's flag carrier, has known that for years.

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When Seiji Maehara, the transport minister, forced Japan Airlines (JAL), the national flag-carrier, into a court-administered bankruptcy, he reportedly had to flout the wishes of his senior civil servants.

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"You always have big rivalries like this with neighbours, take USA-Mexico, or Holland-Germany, Korea-Japan, " he said, as the team filed onto the team bus painted the colors of the Iranian flag.

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