“磨坊尽头公园”位于美国俄勒冈州波特兰市中心一条繁华的四车道大街上。在那块直径两英尺的圆形肥沃土壤里,栽种着万寿菊、老鹳草花和百合花。当司机们在等待交通灯变换时,可能并不知道有关这个小圆圈的故事,而它其实源于路面上的一个洞。 The “Mill End Park” is located on a bustling four-lane street in downtown Portland, Oregon. In the round, fertile soil two feet in diameter, marigold, geranium flowers, and lilies are planted. When drivers are waiting for traffic lights to change, they may not know the story about the small circle, but it actually originated from a hole in the road.