treeingn.树枝状组织；植树动词tree的现在分词形式.treen.树；树状物tree-form of records文档记录树tree falsespiraea bark珍珠梅Trees laden with fruit结满果实的树tree of economic value经济林木tree with two branches二叉树tree ring width record树轮宽度记录trees fringed the lawn草坪周围长着的树tree burial of Tibetan树葬tree species resources树种资源tree-like computation类树计算