据说,日本的餐馆要求服务员把餐桌擦七遍。关于擦桌子有一个广泛流传的对比:如果是一个日本雇工,就会一直按七遍的要求坚持擦下去,而如果是一个中国雇工,一开始会坚持擦七遍,但过一段时间之后就会减为六遍,最后或许就得过且过了。我不知道擦七遍的要求有何科学依据,但可以肯定的是,擦一两遍和七八遍是有区别的,这种区别的效果短期内可能并不明显,比如,肉眼观察到的桌子已经变得干净了,但若仔细观察或借助 It is said that Japanese restaurants require waiters to wipe the table seven times. There is a widely circulated comparison of the wiping table: if it is a Japanese employee, he will always stick to the request of seven times, and if it is a Chinese employee, he will insist on rubbing seven times at the beginning, but after a while Subtract to six times, and finally may have had too. I do not know any scientific basis for the requirement of rubbing seven times, but what is certain is that there is a difference between rubbing one or two times and seven or eight times, and the effect of such difference may not be obvious in the short term. For example, The table has become clean, but if you look closely or with help