Don't Waste Water
A man is washing his clothes, regardless of (不管，不顾)the notice above “Save the water, please.” As we see, water is the source of life. But there is very limited available （可利用的）water resources in the world.
So we shouldn't waste it. Of course, we have to use it to drink, and to do cooking, washing and etc(and so on). But we must remember not to use it extravagantly(奢侈的，浪费的). If we don’t stop such wasteful habits, we would cut off (切开，切断，割掉，削除，伐除；截止；截断)the development of the world and human life.