在现实生活中,水龙头可以说是随处可见之物。特别是在一些公共场所,人来人往,常常会有洗手的需要,自然也就免不了要接触水龙头。不过,洗手的目的除了清洗手上看得见的污物之外,也是为了减少沾染在手上 In real life, faucets can be said to be everywhere. Especially in some public places, people come and go, often have the need to wash their hands, naturally, will inevitably have to touch the tap. However, the purpose of washing hands in addition to cleaning hands visible dirt, but also to reduce contamination in the hands