falling ball impact test

• 落球冲辉验

falling ball impact test的用法和样例：

例句

1. Johnson took the ball over on a quarterback sneak for a touchdown.
   约翰生带球冲入对方终点，触地得分。
2. At that time, young Luo dribbled crashes in the forbidden area, Boulton's guard Samuaier but actually shovel ball.
   当时，小小罗带球冲进禁区，博尔顿的后卫萨穆埃尔倒地铲球。