They say the area will become depended on imported food unless water is saved through methods like Low Till Farming.

他们说，除非通过低耕农业等方法节约用水，否则该地区将变得依赖进口食品。

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The child who fell into the water was saved by the lifeguard.

那名落水儿童被救生员救了上来。

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She saved a little girl from falling into the water.

她救下一个眼看要落入水中的小女孩。

《牛津词典》

The mayor's suggestion in the summer heatwave of 2005 that Londoners saved water by flushing the toilet less frequently was considered an act of sacrifice too far for most people -- global warming or not.

CNN: London leads climate change fight