Metatheorem
[计] 元定理
🗣️ 情景例句
autograph copies for the guests at the opening?
在展览开幕时为客人在书上亲笔签名呢
Well, I'm sorry you have to leave so early.
哦，很遗憾，你非得这么早走不可。
It usually comes in September or October.
中秋节通常在9月或10月份。