n.返老还童；变年轻

Some renascent mortal got arthritis and myocarditis，and whether they will be senescence or juvenescence is a question. 新兴的人类得了关节炎和心肌炎。他们是否会衰老还是返老还童，这是个问题。

We hope our juvenescence, studiousness, enthusiasm and confidence will make our school more glorious. 愿我们的年轻好学、我们的激情自信，为一小的教育事业再添光彩！

My major research direction is scar prevention and cure and face juvenescence operation. 主要科研方向为瘢痕防治与面部年轻化手术。

Juvenescence, makes the city burst out the ray of innovation brightness; 年轻，让这座城市迸射创新智慧的光芒；

9. Some renascent mortal got arthritis and myocarditis，and whether they will be senescence or juvenescence is a question. 新兴的人类得了关节炎和心肌炎。他们是否会衰老还是返老还童，这是个问题。