2008年8月12日，大约下午6点。 奥体中心地铁站的黑市。

12 August 2008, around 18:00. Olympic Sports Center subway station impromptu black market.

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“Protocol is commonly described as a set of international courtesy rules. These well-established and time-honored rules have made it easier for nations and people to live and work together. Part of protocol has always been the acknowledgment of the hierarchical standing of all present. Protocol rules are based on the principles of civility.”

—Dr. P.M. Forni on behalf of the International Association of Protocol Consultants (Wikipedia)