Main level is the level where you can enter and exit the building on foot. Depending on the construction of the building, the main level could be at any floor.
目錄：社會與文化 > 語言 2020年08月23日
..., having been tested the same academic experience on result which can greatly share English on how..."Chen"English level can only be a few simple sentences and ...
目錄：社會與文化 > 語言 2020年10月27日