英语翻译研究对象为15名游泳运动员,男9名,女6名；平均年龄16.33±1.95岁；平均运动年限7.07±2.12年；健

Research subjects are 15 swimmers,9 male athletes and 6 female athletes; their avergae age is 16.33±1.95years; average sports life is 7.07±2.12years; 5 people are from the excellence stage,8 from stage one and 2 from stage two.
自己打的.