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
It's good! It's this Sunday at 7.
好极了。宴会再本周日7点。
Laugh, and the world laughs with you; weep, and you weep alone.
你笑，人人陪你笑；你哭，惟独你自哭。
Last Sunday we had a picnic.
上星期天我们去效游。