该玩的年纪却动了情该笑的年纪却都看清
[gāi wán de nián jì què dòng le qíng gāi xiào de nián jì què dōu kàn qīng]
'Should Have Played But Fell In Love; Should Have Laughed But Saw Clearly' implies that during youth when carefree enjoyment was expected, the person instead experienced deep emotions; in young age meant for laughing, they came to see the world's reality sharply.