Directed tree matrix
[计] 有向树矩阵
🧩 词语组成解析
directed
[[di'rektid]]
a. 定向的；经指导的；被控制的
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
It hurts so much when a baby gets his first teeth.
小孩子长第一颗牙齿时好痛哟。
You can tell.
看得出来。
It's too good to be true!
好得难以置信。