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Someone who is youthful behaves as if they are young or younger than they really are.
I'm a very youthful 50.
我50岁了，但仍富有青春活力。
youthful enthusiasm and high spirits.
青春的激情和昂扬的情绪。
雅思英语词汇收录8785个雅思英语词条，基本涵盖了全部常用雅思英语词汇的翻译及释义，是英语学习的有利工具。