少年薄唇多软不适合吸烟少女眼睛多美不适合流泪
[shăo nián bó chún duō ruăn bù shì hé xī yān shăo nǚ yăn jīng duō mĕi bù shì hé liú lèi]
The boy's soft thin lips are unsuitable for smoking, the girl's eyes so pretty should never shed tears. A poetic sentiment that implies a pure love story: boys and girls, beauty and innocence. Hope there is no bad habit (smoking) tainting such a pristine world, and the beautiful shouldn't be tainted with sorrow or hurt (crying).