noun, verb · the recovery and processing of waste materials for reuse

再生纸的使用有助于减少树木的砍伐。

adverb, verb · to undergo biological regrowth or spiritual rebirth

壁虎的尾巴断了以后还可以再生。

verb · to be regarded as a modern-day version of a famous deceased person

他才华横溢，被誉为李白再生。