上发条

例句：

1. 1. The clock was wound up tight before the meeting.
   会议前，这台钟被上紧了。
2. 2. The rope was wound up tight to hold the heavy weights.
   绳子被上紧以支撑重物。
3. 3. He had to wind up his muscles for the long run.
   他必须上紧肌肉准备长跑。