Unprovability
不可证明性
🗣️ 情景例句
He was my roommate in college.
他是我大学时的室友。
Take time while time is, for time will be away.
有时间要加以利用，因为时间是要消逝的。
You see, we've been in China for over two years now, so we are travelling back to England soon for a holiday.
您知道，我们到中国已有两年多时间了，所以不久后我们就要回英国度假了。