Subproblem tree
[计] 子问题树
🧩 词语组成解析
[计] 子问题
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
Maybe we should
也许我们应该
Don't bother your father now, he is very tired.
现在别拿这个去烦你爸，他很累了。
While I write my pen moves, but the paper keeps still.
我写字时，笔是移动的，纸是静止的。