雁翎刀
雁翎刀-
鸢尾科的一个单子叶植物属。有关雁翎刀.柳叶刀.牛尾刀.该如何区别？
A monocotyledonous genus of the family Iridaceae . How to distinguish the Yanling sword , Willow leaf sword and cow-tail sword ?
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京子垛、雁翎刀、将军帽、过风崖、挂剑垛、悬石惊天、牛心垛等雄奇险峻，浑然天成。
Beijing-alleyway Yanlingdao , caps , the wind stop and hang the sword alleyway hanging Danjingtian , bovine , Xiongqi precarious pile , unaware Tiancheng .