juvenescence
juvenescence[ˌdʒuːvəˈnɛs(ə)ns]noun- [mass noun](formal)the state or period of being young
(正式)年轻;年轻时期
派生juvenescentadjective语源- early 19th cent.: from Latin juvenescent- 'reaching the age of youth', from the verb juvenescere, from juvenis 'young'
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