许多家长批评这种付费参与的体育俱乐部体系，认为它不公平地限制了低收入家庭的孩子。

Many parents criticize the ___pay-to-play sports club system, believing it unfairly limits access for children from low-income families.

这款游戏的pay-to-play模式让玩家必须付费才能解锁新角色。

This game's ___pay-to-play model requires players to pay for unlocking new characters.