Understand why casinos and racetracks stay in business - the gambler always loses over the long term.

Understand why casinos and racetracks stay in business - the gambler always loses over the long term.

了解为什么赌场和赛马场还在营业-赌徒总是在长期亏损。

-- Marilyn vos Savant 玛丽莲·沃斯·莎凡特