Cyclopentenylundecylic acid
[建] 环戊烯十一酸
🧩 词语组成解析
🗣️ 情景例句
It is for me,
对我来说当然足够，
To know everything is to know nothing.
事事皆知，事事不懂。
Yes, I'm afraid I do.I may come later.
是的，恐怕我必须做。我可以晚一点去。