接近的个案研究，讨论，角色组合扮演和小组的工作。
A combination of case studies, discussions, role-play and group work.
它不是为所有的可能角色组合创建子类，而是为每个单独的角色创建一个类。
Rather than create subclasses for all the combinations of possible roles, a class is created for each individual role.
考克斯已经把她没周工作天数减少到3天并公开承认把不同的角色组合起来很难。
Cox had already reduced her working week down to three days and had publicly admitted the difficulty of combining different roles.
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