Mother : Okay sweetie, now I'm going to bounce the ball to you. Get ready!
好,甜心!现在我要把球拍过去给你啰! 预备!
网络期刊摘选
As the bounce the ball decreases the height per contact with the ground so does it's!
每接触地面一次,球的反弹高度也随之降低,光也一样.
互联网
特别是在正、反手截击准确度和中后场准确度上差异显著;在正手、反手截击反弹球深度测试和中后场深度测试上有差异。
互联网