中文：

AB制指的是一种婚姻制度，其中夫妻双方各自独立管理自己的财产，并且互不干涉对方的财产。这种制度主要存在于富裕的家庭中，目的是为了防止婚姻破裂时财产纠纷的发生。

在这种制度下，夫妻双方可以拥有自己的个人财产，如工资、奖金、投资等，这些财产归各自所有，并且不参与共同财产的管理。夫妻之间可以约定彼此的财产权益和责任，但是这些约定不能违反法律法规和公序良俗。

AB制的好处在于，夫妻双方可以保持各自的独立性和自主性，同时也可以避免因为财产问题而产生不必要的纠纷和矛盾。但是，这种制度也存在一些问题，例如可能会导致夫妻之间的信任和感情受到影响，同时也需要夫妻双方具有一定的经济实力和理财能力。

英文：

AB system refers to a marriage system in which both spouses manage their own property independently and do not interfere with each other's property. This system mainly exists in wealthy families and aims to prevent property disputes from happening in case of marital breakdown.

Under this system, both spouses can own their own personal property, such as salaries, bonuses, investments, etc. These properties belong to each individual and are not involved in the management of common property. Spouses can agree on each other's property rights and responsibilities, but these agreements cannot violate laws, regulations and public order.

The advantage of AB system is that both spouses can maintain their independence and autonomy, while also avoiding unnecessary disputes and conflicts over property issues. However, this system also has some problems, such as possible impact on trust and feelings between spouses, and requires both spouses to have a certain degree of economic strength and financial management ability.