Postorder traversal
[计] 后序遍历
🧩 词语组成解析
[计] 后根次序
[计] 遍历
🗣️ 情景例句
Good idea.
好主意。
What's your nationality?Are you a French?
你的国籍是什么？你是法国人？
They will add a couple of days to our shipping date.
那要多个二、三天才能出货哦。