晚上,我和妈妈在小区里散步。“韦达,你觉得这个人行道有什么特点?”“中间的砖头和两边的砖头不一样,两边的砖头都是平平的,中间的砖头两边平平,当中却凸出来几条。”“这些砖头铺成的路是供盲人走的,叫作盲道。你闭上眼睛在上面走走看。” In the evening, my mom and I walk in the district. “Weida, what do you think of this sidewalk?” “The middle brick is different from the bricks on the two sides, the bricks on both sides are flat and the middle bricks are flat on both sides, ”These brick paved roads are for the blind, called the blind, and you close your eyes and walk on it.“ ”