Pentadecalactone
[建] 十五酸内酯
🗣️ 情景例句
When will the delivery be possible?
可以在什么时候交货？
I'd like to change my reservation.
我想变更一下我的预订。
In those days wandering minstrels were welcome everywhere.
当时，浪迹天涯的吟游歌手到处受欢迎，