a physical exercise in which you stand with your feet together and arms down, jump up and spread you

中文解释

星形跳（一种锻炼方式，双脚并拢，双臂放下，跳起来，双臂和双腿尽量分开，然后双脚并拢着地，双臂放下） We start with a warm-up of star jumps and press-ups.