Plane tree
[计] 平面树, 有序树
🧩 词语组成解析
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
A great-grandchild. A great-grandson.
一个曾孙。 一个曾孙。
I'd like to reserve a sleeper to chicago.
我要预订去芝加哥的卧铺。
Mmm, I see. It feels a bit tense. what happened exactly?
哦，我知道了。摸起来有点硬。到底发生了什么事？