我希望生活在21世纪20年代的人们真正明白节约用水的重要性。
I hope the people living in the 2020s truly understand the importance of saving water.
应该让孩子们明白节约用水的重要性。
Children should be made to understand the importance of saving water.
很遗憾很多人没有意识到节约用水的重要性。
It is a pity that a lot of people haven't been aware of the importance of saving water.
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