Unprovability
不可证明性
🗣️ 情景例句
It's important
这是很重要的
We have thirty minutes to kill.
我们有三十分钟空闲时间。
I'll have to go now. Someone wants to use the phone. All the best.
现在我得挂电话了。有人想用电话。祝你一切都好。