Mathematical tree
[计] 数学树
🧩 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
Keep smiling! things will calm down.
乐观一点，事情会平息下来的。
It seems he's making plenty of money.
看起来他好像赚很多钱。
Why didn't you tell me then?
为什么那时不告诉我呢？