
quadrennial 1. 四年的 2. (每)四年(发生)一次的 3. 每四年一次的事(如四周年庆祝活动等) 四年举行一次 It has been held once every four years.足球世界杯四年举办一次, 是全世界球迷的共同节日。 A common festival for all football fans all over the world, the Football World Cup, is held once every four years.

quadrennial 1. 四年的 2. (每)四年(发生)一次的 3. 每四年一次的事(如四周年庆祝活动等) 四年举行一次 It has been held once every four years.足球世界杯四年举办一次, 是全世界球迷的共同节日。 A common festival for all football fans all over the world, the Football World Cup, is held once every four years.