vitality是动词还是名词

是名词，意思是活力、生命力，例如：

1、It was a performance of verve and vitality.这是一场充满激情与活力的演出。

2、Mr Li said China's reforms had brought vitality to its economy.李先生说中国的改革给其经济注入了活力。

3、She is bursting with vitality and new ideas.她朝气蓬勃，满脑子新主意。