奥运开幕式：哪国代表团第二个出场
The Olympic Games shall be proclaimed open by the Head of State of the host country.
The delegation parade in alphabetical order according to the language of the the host country, except for Greece, which leads the parade, and for the host country which brings up the rear.
参考译文（来自互联网）
奥运会由东道国国家元首公布开幕。代表团按东道国说话笔墨的字母顺序进常希腊和东道国例外，希腊代表团第一个出场，东道国代表团末了一个进常

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