【答案解析】I only theoretically knew the importance of water before I truly experienced the hard life without water. Last Monday, I suddenly found that there was no water at all when I got up in the morning as usual. I tried all taps in my department, but got no result. The time didn't wait. I had to go to work on time. So I went to work without my face washed, without my teeth brushed, and with an empty stomach. I felt so embarrassed and didn't dare to look at anyone. That is only one morning, so you can imagine, what would happen if there was no water for the crops and the factories.