role play
noun [ C or U ] uk/ˈrəʊl ˌpleɪ/ us/ˈroʊl ˌpleɪ/
（尤指在学习新技巧过程中作为练习的）角色扮演，角色演习
pretending to be someone else, especially as part of learning a new skill
Role play is used in training courses, language-learning and psychotherapy. 角色扮演被用于训练课程、语言学习和精神疗法中。