Undocumented
a. 无正式文件的, 无事实证明的
🗣️ 情景例句
What's that?
什么意思？
Come on now-buck up-face the music-nose to the grindstone.
快振作起来，面对现实，埋头苦干。
Of course I will. What about you? Aren't you going to Xi'an soon?
我当然会的。你打算上哪度假呢？你不是很快就要去西安了吗？