Germacranolide
大根香叶内酯
🗣️ 情景例句
I think you have got it, Richard.
我想你已完成了 ，Richard。
This part of the country is very flat.
这个国家这一部分很平坦。
While he was eating, I asked him to lend me twenty pounds.
当他吃饭时，我提出向他借20英镑。