Pentacite
季戊(四醇)醇酸树脂
🗣️ 情景例句
Would you mind opening your suitcase?
请把您的箱子打开，好吗？
Do you live across from the Public Hall?
你在大会堂对面居住吗？
It's time to get down to business now.
是进入正题的时候啦。