Metatheorem
[计] 元定理
🗣️ 情景例句
Let me help.
我来帮忙。
How much is a hair cut?
剪一次头发要多少钱？
The girl, tears streaming down her face, begged to be allowed to slip into the guard's van.
女孩泪流满面，央求让她不声不响地到押车员车厢里去算了。