夏天到了,孩子们稍一活动就满头大汗,而当他们满身是汗地回到开着空调的教室,就很容易感冒。为了防止学生着凉,我每次都叮嘱他们赶紧把汗擦干。于是,孩子们使用了各种方法.用衣袖擦,用手抹。更多是用纸巾擦。孩子们擦完汗,纸篓里便多了很多废纸。我想:用衣袖和手擦很不卫生,用纸巾又太浪费,怎样才能让孩子们环保卫生地擦汗呢? When the summer is over, children sweat profusely at a little activity, and when they are sweaty back to the air-conditioned classroom, it is easy to catch a cold. In order to prevent the students from getting cold, I told them to dry the sweat every time. So, children use a variety of methods. More is a paper towel. The children sweat sweat, waste paper will be a lot of waste in the paper basket. I think: rubbing with sleeves and hands is not very hygienic, and paper towels are too wasteful. How can we help children clean their wipes and sanitation?