4个数三中三中3个可以中几组简介：Soon, the group of them was taken to a room. When they opened the door, they saw that the three walls were densely packed with bookshelves. The shelves were filled with different documents, filling the entire room.
Soon, the group of them was taken to a room. When they opened the door, they saw that the three walls were densely packed with bookshelves. The shelves were filled with different documents, filling the entire room.
