Cnf
abbr. 合取范式（conjunctive normal form）；成本加运费（cost and freight, 等于CFR）
🗣️ 情景例句
no concert, no stage presentations.
没有音乐会， 没有舞蹈表演。
We can spend hours talking about computers.
我们可以花些时间一起聊聊电脑。
she presented a more majestic spectacle than Stockholmers had ever seen before.
瓦萨号展现的壮观景象是斯德哥尔摩人从未见过的。