第一次跟车上高速公路时,心里特别敞亮。心想:这么宽阔平直的大道,一定很顺利,很安全。可是,走过一段笔直平坦的道路后,前面出现了起伏很大的弯道。我颇感遗憾,说:“要是没有这样的弯道多好。”司机冲我一笑:“你不懂,这弯道可是故意设计的。”见我茫然,他接着说:“适当设一些弯道,能使开车的人时刻保持清醒头脑,避免由于惯性造成视觉上的误差……” The first time with the car on the highway, my heart especially bright. Thought: such a broad straight Avenue, it must be very smooth, very safe. However, after a straight and flat road, there was a sharp curve in front of it. I am rather sorry to say: “If there is no such a bend, it is good.” “The driver rushed at me with a smile:” You do not understand, this curve was designed deliberately. “” See me at a loss, he went on to say: “Appropriate to set some corners, can make drivers always keep a clear head, to avoid the visual error caused by inertia ... ”