Blackboard structure
[计] 黑板结构
🧩 词语组成解析
🗣️ 情景例句
I knew it!
我就知道！
That's international practice. We can't break it.
这是国际惯例，我们不能违背。
But there are some parts of the word where even now people cannot write.
但直到现在，世界上有些地方，人们还不会书写。