What does ZR51CF mean in bridge?

zr= natural system, 5=5 flowers bloom, 1CF=1 club force=1C opens and calls for a round. It is a natural bidding method with China characteristics, which absorbs some advantages of standard natural bidding method and accurate bidding method. It has a wide market among the people, but it has not been recognized by most expert players.

What is the subway route from Qingdao to Laoshan?

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How does Tencent Conference turn off other people's voices?

I want to ask: Who knows how much Zhang Kun's word 1 is worth! Where can I buy it! I hope those who know will reply as soon as possible.

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Changsha University to Changsha Happy Jiangnan Hotel