Postorder
[计] 后根次序
🗣️ 情景例句
I see your point you mean.
我懂你的意思。
This is to be my treat, so I'll pay for everything.
这次轮到我作东，所以一切由我付账。
Let's ask this policeman. He may know.
咱们问问这位警察。他可能知道。