The Bian River flows westward to reach Luoyang, the eastern capital; northward it leads to Yanyun and Beiping; southward it connects to Hangzhou via a detour. It can be considered one of the major arteries of political, military, and economic activity in the state of Wei.,When the pedestrians on the road became sparse, he pushed his tricycle and started to run wildly, grinding the cast iron parts connecting the wheel and axle so fiercely that sparks flew!,The old man kept circling him, opening his mouth several times but failing to speak until Yang Ge was almost done arranging the firewood. Then, as if suddenly remembering something, he grabbed Yang Ge's hand and said, "Wait a moment, don't rush, I have something to show you!"。