Clubs are allowed to spend heavily on acquiring players but they have to counterbalance that with legitimate sources of income, allowing them to approach break-even on their football-related business.
俱乐部可以花巨资购买球员，但他们必须利用合法的收入来源来弥补所花巨资，使他们在足球的相关业务上实现盈亏平衡。