Polish notation
[计] 波兰表示法
🧩 词语组成解析
🗣️ 情景例句
It's common practice.
这是惯例。
What's the purpose of your visit?
你旅行的目的是什么？
Before Annie Sullivan came to our house, one or two people had told my mother that I was simple-minded.
安妮·莎利文来到我们家之前，已有一两个人告诉我母亲，说我头脑简单。