| 单词 | lustrum | 
| 释义 | Definition of lustrum in English:lustrumnounPlural lustrums, Plural lustra ˈlʌstrəmˈləstrəm literary, historical 
 OriginLate 16th century: from Latin, originally denoting a purificatory sacrifice after a quinquennial census. Definition of lustrum in US English:lustrumnounˈləstrəmˈləstrəm historical, literary 
 OriginLate 16th century: from Latin, originally denoting a purificatory sacrifice after a quinquennial census.  | 
	
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