求翻译：现代的奥运会都是每四年举行一次。运动会主要有两种：夏季奥运会和冬季奥运会。冬季奥运会总是在夏季奥运会的前两年举行，只有达到他们各自项目统一标准的运动员才会被接受参加奥运会。选手可以来自全世界任何一个地方。冬季奥运会并不包括跑步和骑马比赛。跑步、游泳、划船和一些团队项目是在夏季运动会上进行。现在只要他们的运动员达到了标准，任何国家都能参赛。总共有250多个项目，每个项目都有自己的标准。第一届奥运会在希腊举行。第29届奥运会在北京举行，对此，我们中国人无比自豪。能够举办奥运会是莫大的荣耀。是什么意思？

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The modern Olympic Games are held every four years. There are two main games: Summer and Winter Olympic Games. Winter Olympic Games in the Summer Olympic Games are always held the first two years, only to achieve a uniform standard of their respective projects will only be accepted in the Olympic Ga

The modern Olympic Games all are every four years are held once.The games mainly has two kinds: Summer Olympics and winter Olympics.Winter Olympics always at summer Olympics' previous two years hold, only then achieved their respective project unification standard the athlete only then can accept pa

Modern Olympic Games are held once every four years. Games there are two main kinds: summer and winter Olympic Games. Winter Olympics are always held two years before the summer Olympic Games, only athletes to reach their respective project uniform standards will not be accepted in the Olympic Games

Modern Olympic Games are held once every four years. Games there are two main kinds: summer and winter Olympic Games. Winter Olympics are always held two years before the summer Olympic Games, only athletes to reach their respective project uniform standards will not be accepted in the Olympic Games