F-12
[医] 氟利昂十二, 二氯二氟甲烷
🏥 医学释义
氟利昂12，二氯二氟甲烷
🧩 词语组成解析
twelve
🗣️ 情景例句
Let me see -- ASPCA....
让我瞧瞧 ASPCA ……
We must make it clear from the very beginning that competitive quotations are acceptable.
必须一开始就讲清的是，有竞争力的报价可以接受。
Come up these steps with me, please, and be careful.
请跟我走上这些台阶，请小心点。