此生無憾用文言文怎么說

Water is very important to us. If you don’t have water for three days, you will die. We can use water for flowers, swimming, washing and many different things. We use it to cook, make electricity, put out fires and so on. We use millions of liters of water every day.
Water is very important for living things. Without water there can be no life on earth. All animals and plants need water. Man also needs water.
As we all have found out, water may be a liquid you can pour it out of a container. Although about 70 percent of the earth's surface is covered with water,there are many places in the world still running out of water. So we should make good use of water on earth.