Kickbike
01
踢踢车, 无踏板自行车
a two-wheeled vehicle with a platform to stand on and handlebars for steering, moved forward by kicking against the ground with one foot
例子
The kickbike is great for cardio and leg strength.
踢行车对心脏和腿部力量非常有益。
踢踢车, 无踏板自行车