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| 활동 모델 단계 (A synonym for an action from the viewpoint of an activity model. When an action is contained within an activity model, it is referred to as an activity model step) | |||
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| 활동 모델 단계 (A synonym for an action from the viewpoint of an activity model. When an action is contained within an activity model, it is referred to as an activity model step) | |||
