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
No sweet without sweat.
不流汗就没有幸福。
There's many a good tune played on an old fiddle.
老当益壮。
Good evening, Uncle Wang!
王叔叔，晚上好！