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cink88

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  1. cink88
    “natural" is not the system name, rather it is a description/category that includes numerous systems in which the bidding is natural and NOT artificial, for example: kaplan-sheiwold/acol/2over1/sayc etc.
  2. cink88
    自然体系说：nat，natural 弱弱地问一句：老外能明白natural是啥体系？
  3. cink88
    总听说RULE几RULE几的，谁知道BBO规则？谢谢
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