我爱的少年他姓张在我心脏
[wŏ ài de shăo nián tā xìng zhāng zài wŏ xīn zàng]
'我爱的少年他姓张在我心脏' roughly translates to 'the boy I love, who is surnamed Zhang, is in my heart.' This shows a deep affection toward someone specific whose surname (Zhang) is mentioned, and emphasizes that this person holds a significant place within the user’s heart.