Pao
abbr. 典藏学术期刊全文资料库（Periodicals Archive Online）
🗣️ 情景例句
Oh, Grandpa, I'm so happy to see you!
啊， 爷爷！ 见到您我真高兴。
The worth of a thing is best known by the want of it.
物以稀为贵。
What are your discount terms?
你们的折扣条件如何？