N-heneicosane
[化] 二十一烷; 正二十一碳烷
🧩 词语组成解析
[机] 二十烷
🗣️ 情景例句
Is it supposed to rain today?
今天要下雨吗？
Take a pain for a pleasure all wise men can.
智者皆能视苦为乐。
He has quite a few friends.
他有不少的朋友。