知其然 ,未必知其所以然。“东西、吃醋、二百五、扒灰、麻将、行李、老鸨、王八、现世宝、敲竹杠、无毒不丈夫、可口可乐、嬉皮士”等等词语是人们日常生活中经常使用而且是很有表现力的词语 ,人们知道它们的大致意思 ,也知道怎么使用 ,但如果要问为什么“东”和“西”各表示 However, I do not know what they are. “Things, jealous, two hundred and fifty, plagiarizing, mahjong, luggage, the old man, the king of eight, the baby, knock on the bar, non-toxic non-husband, Coca-Cola, hippies,” and other words are often used in everyday life and is very expressive words , People know their general meaning and know how to use it, but if you want to ask why “east” and “west” each mean