一越狱犯趁夜幕朝牧场方向逃走。雨后泥泞的空地里清晰地留下了逃犯的脚印。于是警察选了一条优秀的警犬沿囚犯逃跑的路线追踪。警犬嗅了墙外空地里囚犯足迹的气味后,马上径直地追向牧场。可是,途中不知为什么,警犬突然停了下来,左转转,右转转,不再前进。然而据警察观察可知,越 A jailbreaker escaped toward the ranch during the night. The muddy open ground in the rain clearly left footprints of fugitives. So the police selected a good police dog along the route of escape prisoners track. Police dogs sniffed the smell of prisoners' footprints in the outer walls of the walls and chased the ranches straight up. However, the way I do not know why, the police dog suddenly stopped, turn left, turn right, no longer forward. However, according to police observation we can see that more