Pentadecalactone
[建] 十五酸内酯
🗣️ 情景例句
Robbie left early this morning to meet Alexandra. Robbie
早上很早出去接Alexandra。
When you're learning to drive, having a good teacher makes all the difference.
初学驾驶有好的教师指导，差别很大。
Such a messenger, receiving our radio and television signals,
这种自动化信息装置，在接收到我们的无线电和电视信号后，