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
Especially to pick it out in blue.
还特地选了一件蓝色的。
Excuse me for bothering you.
打扰了！
Education, with its cycles of instruction so carefully worked out,
教育，以其教学周期如此精心地安排，