Unprovability
不可证明性
🗣️ 情景例句
OK. Do you know when you'll come and visit?
好啊。你知道几时还会再来拜访我们吗？
There are always two sides to everything.
任何事情哒都有2个方面。
I did it, I'm so happy now.
我做到了，现在我很满意。