personal trainer
noun [ C ] uk/ˌpɜː.sən.əl ˈtreɪ.nər/ us/ˌpɝː.sən.əl ˈtreɪ.nɚ/
私人健身教练
someone whose job is to help you become stronger and healthier by deciding which exercises you should do and showing you how to do them
Sandy works out with her personal trainer every week. 桑迪每周和她的私人健身教练一起健身。