| 单词 | septuagenarian | 
| 释义 | septuagenarian  (septʃuədʒɪneəriən  )       Word forms:  septuagenarians   countable noun [oft NOUN noun]  A septuagenarian is a person between 70 and 79 years old.  [formal]  Many septuagenarians are still very active.    | 
	
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