陈女士和丈夫于2008年登记结婚,陈女士从事个体零售生意,丈夫是一名出租车司机。婚后,夫妻双方约定财产实行“AA制”:即各人收入归各人所有,各人支出由个人承担,双方共同生活的花费则由双方均摊。2010年初,儿子出生,夫妻双方又约定孩子的支出各自负担一半。“可当时孩 Ms. Chen and her husband registered for marriage in 2008, Ms. Chen engaged in individual retail business and her husband was a taxi driver. After the marriage, the couple agreed that the property should be ”AA system“: that is, each person's income should be owned by each person, and each person should pay for his expenses. Both parties should share equally in the cost of living together. In early 2010, his son was born, and both parties agreed that their children's expenses should be borne by half. ”Can be children