Before starting to play, it is wise to read up on all the roulette rules.

在开始玩，这是明智的，读了所有的轮盘赌的规则。

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In a world of multiple connections, where the distribution of future probabilities cannot be known (unlike the probabilities involved when spinning a roulette wheel), simple rules of thumb may be more useful than sophisticated models.

ECONOMIST: Simple rules may be best for monitoring banks