Ppq
abbr. polyphenylquinoxaline 聚苯基喹喔啉
🗣️ 情景例句
I'm leaving for Beijing on a four-day tour.
我马上要去北京旅游4天。
Thank you for your gift.
谢谢你的礼物。
He ran his horse up the hill.
他策马跑上小山。