Cnf
abbr. 合取范式（conjunctive normal form）；成本加运费（cost and freight, 等于CFR）
🗣️ 情景例句
Well, that's what fathers are for.
嗯，父亲们的用处正在于此。
The death of wolves is the safety of the sheep.
群狼一死众羊安。
Your satisfaction is guaranteed.
包你满意。