词汇	挖隧道
释义	挖隧道 excavate a tunnel
随便看	breadth factor breadth first breadth-first breadth-first algorithm breadth first analysis breadth-first generation breadth first greedy algorithm breadth-first growth process breadth first method breadth first parsing breadth-first procedure breadth-first searcbreak alarm breadth first search breadth-first search Breadth-First-Search breadth_first search breadth -first search breadth-first search algorithm breadth-first search arithmetic breadth first search method breadth first search strategy breadth-first strategy breadth-first traversal breadth-height index breadth-height index of the head