Pentadecanolide
[建] 十五酸内酯
🗣️ 情景例句
Her enthusiasm died away.
她的热情逐渐消失了。
Don't underestimate the difficulties of the work.
不要低估了这项工作的限巨性。
I may.I can't make up my mind.
有可能退。我还拿不定主意。