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
I'm sure he misses Grandma on a day like this.
我想在这样的日子祖父一定会思念祖母。
I can't imagine that anyone cares about what I do.
我想不出谁会关心我的所做所为。
How many players are there in a team?
一个队里有多少名队员？