1.有“break”的动词短语 break down: a.(机器或车辆)出故障;坏掉e. the telephone system has broken down.电话系统瘫痪 了。b.失败e.g. . Negotiations between the two sides have broken down.双方谈判失败 了
Outline Path Planning in Partially Known Environments. Finding the Shortest Path to the Goal. Alternative Approaches to Path Planning in Partially Known Environments. Continuous Optimal Path Planning