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
for opening their home to me.
为我敞开大门。
Don't speak all you know, but know all you speak.
不要尽言所知，而要尽知所言。
The number 13 bus will take you to the hospital.
13路车会带你去医院。