Sam works as a fitness instructor at that gym.
山姆哥在那家健身院担任健身教练。
Fitness instructor
原声例句
赖世雄进阶英语词汇3500
CNN 10 学生英语 2023年3月合集
He's a fitness instructor who created bloom fitness in honor of his daughter Emma.
他是一名健身教练，为了纪念他的女儿艾玛创立了“绽放健身”。
剑桥雅思听力全真试题 13
You will here a fitness instructor talking on a radio about different ways of keeping fit.
你将听到一个健身教练在广播节目里谈论保持健康的不同方式。
英语百科
Fitness professional
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A fitness professional is a professional in the field of fitness and exercise, most often instruction (fitness instructor), including aerobics and yoga instructors and authors of fitness instruction books or manuals. Fitness topics may also include nutrition, weight-loss, and self-help. Fitness careers are distinguished from exercise science careers such as athletic training, however the various types of fitness certifications have more and more in common: the, "distinctions...have become blurred, with more similarities than differences given the common background that all fitness professionals must possess."