If something rejuvenates you, it makes you feel or look young again.
例句
Shelley was advised that the Italian climate would rejuvenate him...有人建议雪莱去意大利，那里的天气会使他恢复活力。When it was time to leave and return to civilization we both felt rejuvenated...当就要离开这里返回文明世界时，我们俩都觉得恢复了活力。
VERB
使（组织、制度等）恢复活力;使更有效率
If you rejuvenate an organization or system, you make it more lively and more efficient, for example by introducing new ideas.
例句
The government pushed through schemes to rejuvenate the inner cities...政府大力推行改造内城贫民区的计划。They should concentrate on rejuvenating the existing vegetation, like grass and shrubs.他们应该侧重于修整现有的绿化植被，比如草和灌木。