我的儿子跟你姓你的儿子跟我姓
[wŏ de ér zi gēn nĭ xìng nĭ de ér zi gēn wŏ xìng]
The phrase 'My Son Takes Your Last Name; Your Son Takes Mine' reflects a sense of equality and balance between couples. It also symbolizes the intertwining destinies between families in marriages.