Who are the barbarians who put footprints on whitewashed walls, who throw chewing gum and cigarette butts on the stairs, who spit and even blow their nose on the floor?

• 那些把脚印留在粉刷得白白的墙上、把嚼过的口香糖和烟蒂扔到楼梯上、把痰吐到甚至把鼻涕擤到地板上的野蛮人是谁呢?