Unique identification
[计] 唯一标识
🧩 词语组成解析
🗣️ 情景例句
How nice it is here.
这儿真不错。
It won't fit; you'll have to go to the post office.
那不行，你必须去邮局才行。
Our climate is not very good,but it's certainly interesting.
虽然我们国家的气候并不很好，但又确实很有意思。