Proposition tree
[计] 命题树
🧩 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
I lost.
我输了。
When the phone rang, I was painting upstairs.
当电话铃响的时候，我在楼上画画。
That's not surprising.
那不奇怪。