noun🔗Share五周年纪念，五年一度。 A fifth anniversary."The company celebrated its quinquennial with a special employee appreciation event. "公司举办了一场特别的员工感谢活动，庆祝其五周年纪念。timeeventnumberhistoryChat with AIVocabulary GamePractice Reading
noun🔗Share五年期，五年。 A five-year period."The university celebrated its quinquennial with a special alumni reunion. "那所大学举办了一场特别的校友聚会，庆祝其五年校庆。timeperiodnumberChat with AIVocabulary GamePractice Reading
adjective🔗Share五年一次的，五年一度的 That happens every five years."The university publishes a quinquennial report detailing its research progress. "这所大学每五年发布一份报告，详细介绍其研究进展。timefrequencyeventChat with AIVocabulary GamePractice Reading
adjective🔗Share五年一次的，五年期的 That lasts for five years."Our company holds a quinquennial conference to review our progress and set new goals for the next five years. "我们公司每五年举行一次大会，回顾过去五年的进展，并为未来五年设定新的目标。timenumberChat with AIVocabulary GamePractice Reading
