早期的奥运会要持续一至三天，但大约从公元前400年开始，比赛项目不断增加，大会要持续整整五天。
Early Olympics each lasted between one and three days, but from about 400 BC, the festival was a full five days as more and more events were added into the Games.
奥运会刚刚增加拳击比赛的项目时，既没有拳击场，也不分回合。
When boxing was added to the Games, there was no boxing ring, nor were there any rounds.
第一后是在1877年举行，比赛项目仅男子单打，后来增加了男子双打、女子单打、双打和混合双打。
The first tournament was held in 1877, only men participated. Men's doubles, woman single, doubles and mixed doubles were accepted as the formal events later.
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