noun🔗Share四年期，四年一度 A four-year period, a quadrennium."The Olympic Games occur on a quadrennial. "奥运会每四年举办一次。timeperiodChat with AIVocabulary GamePractice Reading
adjective🔗Share四年一次，每四年一次 Happening every four years."The Olympic Games are a quadrennial event, taking place every four years. "奥运会是四年一次的盛事，每四年举办一次。timeeventfrequencyChat with AIVocabulary GamePractice Reading
adjective🔗Share每四年一次的，四年一度的 Lasting for four years."The Olympics are a quadrennial event, happening every four years. "奥运会是四年一度的盛事，每四年举办一次。timeeventChat with AIVocabulary GamePractice Reading
