Flavol
黄醇, 1, 3-蒽二酚
🗣️ 情景例句
I remember your parents' first house very well.
我还清楚记得你父母的第一栋房子。
The sewing machine is out of order.
这缝纫机坏了。
Please drop the other shoe!
请丢下另一只鞋吧！