youth
爷青回
My youth is making a comeback; good old youth
“爷青回一般指爷的青春回来了。爷的青春回来了是网络流行语，简称爷青回，形容与青春久别重逢的喜悦。”
爷青回:My youth is making a comeback.
每次听这首歌，都感觉爷青回啊!
Each time I listen to this music , I feel that my youth is making a comeback.
但是也有翻译为good old youth，意思是美好的青春岁月，认为更有味