As I said, mostly the building just needs a good cleaning.
就像我先前所说的 这栋建筑物大部份仅需要好好打扫一下
You can imagine how useful this is, particularly in countries like China and Japan, which use written characters not letters.
你可以想像得到,特别是在中国和日本这些使用文字而不是字母的国家,这是多么有用处!