Wash words and make sentences:
1. When he finished washing and went into the study to check the pen again, he was just stunned when he pushed the door.
2. After dinner, a Meidochan brought tea and mouthwash. First rinse your mouth with tea, wash your hands, and then serve tea. This is a serious kind of tea.
This kind of bacteria will not make healthy people sick. Therefore, most people who use automatic tap water in public toilets need not worry about this research.
4. At present, the invention of "water saving device for washing water reuse" extended from this principle has obtained national patent. After installing this device, waste water can be introduced into the toilet tank without raising the washbasin.