Cnf
abbr. 合取范式（conjunctive normal form）；成本加运费（cost and freight, 等于CFR）
🗣️ 情景例句
Grandpa taught me.
爷爷教我的。
You had better leave right now.
现在你最好立刻回去。
During the summer months, the monastery is very busy, for it is visited by thousands of people who cross the Pass in cars.
夏天的几个月里，修道院十分忙碌，因为有成千上万的人驾车通过山口，顺道来修道院参观。