pickup game

pickup game：即興比賽

例句：Rush returned to Kansas in May 2007, and it was announced that Rush had torn the anterior cruciate ligament in his right knee playing in a pickup game of basketball.

2007年5月，拉什返回堪薩斯大學，據宣布他在一次即興籃球賽上受傷，右膝前十字韌帶撕裂。