Cnf
abbr. 合取范式（conjunctive normal form）；成本加运费（cost and freight, 等于CFR）
🗣️ 情景例句
for a new member of the Stewart family.
给Stewart家的新成员了。
How about feed-back from your retailers and consumers?
你们的零售商和消费者的反映怎样？
I find listening really hard. Sometimes it's just impossible to understand.
我觉得听力很难。有时简直听不懂。