adj.连续四年的
n.每四年一次的事件；连续四年的时间；第四周年；四周年纪念

The Olympic Games are held every quadrennial, uniting athletes from around the world.
奥林匹克运动会每四年举行一次，将来自世界各地的运动员聚集在一起。
The political convention is a quadrennial event where party members select their presidential nominee.
政治大会是一个四年一度的活动，届时 party 成员将选出他们的总统提名人选。
The quadrennial census is crucial for understanding demographic shifts in the country.
每四年的普查对于理解国家的人口动态至关重要。
The president's inauguration marks the start of a quadrennial term in office.
总统的就职典礼标志着为期四年的任期开始。
The festival, celebrated quadrennially, showcases the best of international cinema.
这个电影节每四年举办一次，展示了国际电影的最佳作品。
Environmental scientists meet quadrennially to assess the state of the planet's ecosystems.
环境科学家每四年聚会一次，以评估地球生态系统的状态。
The company reviews its strategic plan on a quadrennial basis to adapt to market changes.
公司每四年审查一次其战略计划，以适应市场变化。
The quadrennial art exhibition attracts thousands of visitors from across the globe.
四年一度的艺术展览吸引了来自全球成千上万的参观者。
The international summit is a quadrennial event that addresses global economic challenges.
国际峰会是一个四年一次的事件，旨在解决全球经济挑战。
Athletes train rigorously for years in preparation for the quadrennial World Cup competition.
运动员为了四年一度的世界杯比赛，数年如一日地进行严格训练。