Cnf
abbr. 合取范式（conjunctive normal form）；成本加运费（cost and freight, 等于CFR）
🗣️ 情景例句
You do. You do. There's a book here.
当然 ，当然。书要出版。
It doesn't work.
坏了；不动了。
shape in only two dimensions.
形态只有两种尺度。