If your arm stretches too far to the side or reaches too far forward, the ball will fall out.

如果你的胳膊向前向两侧伸展过长，球就会掉落在地。

youdao

There are moments in a match when the ball hits the top of the net, and for a split second it can either go forward or fall back.

网球比赛中，有一种情况叫“擦网球”，那一瞬间，球可能弹过网也可能被弹回。

youdao

There are moments in a match when the ball hits the top of the net, and for a split second it can either go forward or fall back.

网球比赛中，有一种情况叫“擦网球”，那一瞬间，球可能弹过网也可能被弹回。

youdao