Undirected tree
[计] 不定向树
🧩 词语组成解析
a. 未受指导的, 无姓名和地址的
tree
[tri]
n. 树;木料;树状图;宗谱;
vt. 把…赶上树;使处于困境;把鞋型插入（鞋内）;
🗣️ 情景例句
I don't think so.
我想不是吧。
Come and see me when you have time.
有空时请过来。
Which school were you at last year?
你去年在哪所学校读书？