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The World Cup is held every fourth year.
世界杯足球赛每四年举行一次。
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Every fourth year athletes from all over the world are admitted as competitors.
每四年，来自全世界的运动员都可以参赛。
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Every fourth year athletes from all over the world are admitted as competitors.
每四年，来自全世界的运动员都可以参赛。
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