to drop out

• 辍学

to drop out的用法和样例：

例句

1. The marathon runner raced ahead in the early stages of the race but he had overplayed his hand and had to drop out exhausted with only three miles to go.
   这位马拉松赛跑者在比赛的开始阶段跑在前面，但他过高地估计了自己的力量，结果在离终点仅3英里时，跑得筋疲力尽力而不得不退出比赛。