饮水机在当下的生活中已经成为一个非常普及的东西，称得上是“眼熟能详”了。这玩意儿的大量出现，当然是人类生存条件越来越好的一个证明；但它的大量出现也让人产生别一种忧虑：地球上能直接饮用的“自然水”是不是越来越少了？不信你瞧瞧这位手拿尺子的先生，他脸上的表情 Drinking fountains in the present life has become a very popular thing, can be called “familiar”. The massive appearance of this stuff is, of course, a testimony to the fact that humankind’s living conditions are getting better and better; however, its appearance in abundance raises another worry: is the “natural water” that can be consumed directly on the earth less and less It? Do not believe you look at the man holding his ruler, his face expression