观察开始点邻近的所有可到达或可行走的方块，忽略有墙，水或其他非法地形的方块。
Look at all the reachable or walkable squares adjacent to the starting point, ignoring squares with walls, water, or other illegal terrain.
费希尔用他的大肚子紧贴着墙行走，为此他的衬衫扣子都从衣服上绷开了，最终他的后背把后视镜给折断了。
Fisher dragged his generous belly along the wall, tearing buttons off his shirt as he went, and finally snapping off the wing mirror with his backside.
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