单词step aerobics
网络: 有氧踏板操
n.leisureexercisekeep fitworkouttraining
Step Aerobics originated in Seventies America and in a few years spread all around the world.
踏板操起源于上世纪70年代的美国，在短短几年的时间内，风靡了全世界。
Step aerobics, a kind of aerobics, requires practicer to have medium and low-intensity exercise lasting a long time.
踏板操作为有氧健美操的一种，要求练习者在供氧充足的状态下进行长时间的、中低强度的运动。
Are you going to do step aerobics today?
伱今天要做阶梯踏步的有氧运动吗？