Pentadecalactone
[建] 十五酸内酯
🗣️ 情景例句
I got the pink slip yesterday
我昨天被解雇了。
We have mainly adopted some usual international practices.
我们主要采取了一些国际上的惯例做法。
I not only spoke English very carefully, but very clearly as well.
我的英语讲得不但非常认真，而且咬字也非常清楚。