尊敬的校长:您好!我是三年级一班的孙中华,我想向您汇报一下我在校园里发现的一些问题。我发现有些同学涮拖把时水龙头开得太大,糟蹋了太多清水。还有的同学打开水龙头时发现没有水,不及时拧上,等来水时,白白流掉很多。更有个别同学,关不紧水龙头就走开。看到这些现象,我觉得很痛心。 Dear Principal, Hello! I am Sun Zhonghua, a third grade student. I want to tell you some of the problems that I found on campus. I found some of my classmates swung the faucet too much and ruined too much water. Some students found that there is no water when the tap is turned on, not promptly screwed on, so when the water, a lot of white flow. More individual classmates, off taps to go away. See these phenomena, I feel very sad.