你结婚我做你伴娘
[nĭ jié hūn wŏ zuò nĭ bàn niáng]
Meaning 'If You Marry, I'll Be Your Maid of Honor'. This expresses the closeness and loyalty of friendship, particularly in the context of romantic relationships and weddings. It indicates a strong emotional bond and readiness to support a close friend through life events.