Water is common and easily available. I deal with water every day: I get up in the morning and drink one cup, take one cup before going to school, drink one cup when I get home from school, take another cup to school in the afternoon, and come back to drink water in the evening. It can be said that water is the source of life that I draw from every moment. But before that, I didn't think so. Although I drink and use water regularly, I am not aware of its importance. One Friday afternoon, I just got out of school. I went home, threw my schoolbag on the bed, took off my sweaty and dirty clothes on the sofa, broke into the warehouse, took a shower all afternoon, changed my clothes, and drank a whole glass of cold water. After boiling the water, he picked up the water gun and hurriedly rushed out the door.