小朋友们,每当你跟爸爸妈妈上街横过马路时,走的是那种画有一道道白线的“斑马线”人行横道吗?要记住,它是行人的安全线。人行横道线是什么时候产生的呢? 早在古罗马时代,在意大利一个叫庞培市的一些街道上,人、马、车都在一起混行,因此,常常发生 Children, every time you go to the streets with Mom and Dad to cross the street, take the “zebra crossing” with a white line? Remember, it is a pedestrian’s safety line. When did the pedestrian crossing come into being? As early as in Roman times, people, horses and cars were mixed together on a few streets in Italy, called Pompeii, and therefore often happened