保存控制

例句：

1. 1. The old painting is in a museum to be saved for future generations.
   那幅旧画被收藏在博物馆里，供未来世代欣赏。
2. 2. She saved up all her savings for a new car.
   她把所有的积蓄都存起来买新车了。
3. 3. We need to save water and electricity to reduce our carbon footprint.
   我们需要节约用水和电来减少我们的碳足迹。