青春无限好何必单恋一条狗
[qīng chūn wú xiàn hăo hé bì dān liàn yī tiáo gŏu]
The phrase 'There are so many wonderful aspects of youth, so why fall in love with just one dog?' sarcastically expresses a disdain towards wasting precious youth on unworthy or limiting relationships. The term ‘dog’ can carry multiple meanings depending on context.