overtraining
n．过度训练：指运动员或锻炼者在训练中超过身体承受能力，导致身体疲劳、损伤或运动表现下降的现象。
例句
Overtraining can cause other problems besides missed periods.
过度训练能导致停经以外的其他问题。
Overtraining is the leading cause of injury and burnout for runners.
过度训练是主要的原因导致受伤和精疲力尽。
Only one problem: "I was overtraining and killing myself, " she says.
只有一个问题：“我过度训练折磨自己。” 她说。
