Inorder traversal
[计] 中序遍历
🧩 词语组成解析
[计] 中根次序
[计] 遍历
🗣️ 情景例句
You must be Robbie.
你就是Robbie吧。
I ask him to stay at school.
我要求他待在学校。
I bought two expensive dictionaries here half and hour ago, but I forgot to take them with me.
半小时以前我在这里买了两本很贵的辞典，但是我忘了拿走。