买水终须辨苦甜,辘轳汲井石槽天。投钱饮马还余半,抛得槟榔取亦廉。——清佚名《燕台口号一百首》北京的井水,不仅供人吃,还要供喂马。古代从全国各地进京办事的官员、赶考的举子和来往的客商大多骑骡马。元代京城里人口多,马骡牲口也多,所以人称“京师乃人马之宫”。马匹的特点就不 Buy water must distinguish bitter sweet, potted stone well sink slot days. Cast more than half the money to drink horses, throwing betel nut to take also cheap. - Anonymous “YANTAI slogan” Beijing’s well water, not only for human consumption, but also for feeding. Ancient officials from all over the country to work in Beijing, to test the cite and merchants who ride mostly horses. In the Yuan Dynasty, there were many people in the capital, such as horses and mules, so they were called “the capital of the capital”. The characteristics of horses are not