二: two叉: part so as to form a fork; f ...树: tree的: 4次方是 The fourth power of 2 i ...通路: thoroughfare; highway; highr ...长度: length; longitude; size; ext ...二叉树的遍历: binary tree traversal traversal of binary tree二叉树的表示: representation of binary tree二叉树的擦去: erasing of binary tree二叉树的定义: definition of binary tree二叉树的复写: copying of binary tree二叉树的枚举: enumeration of binary tree通路长度: pathlength二叉树的存储表示: memory representation of binary trees二叉树的对称次序: symmetric order for binary tree二叉树的后根次序: postorder for binary tree二叉树的前根次序: preorder for binary tree二叉树的中根次序: inorder for binary tree内部通路长度: internal path length外部通路长度: external path length通路长度, 路径长度: path length通路长度；路线长度: path length二叉树: b tree; b-tree; binary tree遍历二叉树: traversing binary tree对称二叉树: symmetric binary tree
