在体育中心锻炼的年轻女性 Young women working out at the sports center

三名年轻女子在木制健身器材上进行背部伸展运动，而穿着黑色紧身裤的健身教练则给出了运动指导

Three young women doing stretch back exercises on a wooden gym gear while the fitness coach wearing black leggings gives the exercise instructions