Traversal of tree
[计] 树的遍历
🧩 词语组成解析
[计] 遍历
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
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
You've been a great help.
你帮了大忙。
Wendy, I'd like you to meet my brother Sam.
温迪，我来向你介绍一下我的兄弟萨姆。
and because there is so much of it the function would seem to e important.
睡眠占去那么多时间，所以其作用似乎还是很重要。