step aerobics
noun [ U ] uk/ˈstep eəˌrəʊ.bɪks/ us/ˈstep erˌoʊ.bɪks/ (also step)
有氧踏板操，台阶健身操
a type of exercise usually done to music in which you quickly step on and off a slightly raised surface
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。