Pona number
[化] 波纳值
🧩 词语组成解析
abbr. paraffin; olefin; naphthene; aromatic (test for petroleum octane rating) 链烷烃
🗣️ 情景例句
Don't you feel well?
你感觉不好吗？
Shame they won't be there.
可惜他们将不在那儿。
Thanks very much. Granny, the hospital is not very near.
非常感谢。老大娘，这家医院有点远。