Polyvinyl
a. 聚乙烯基的
🗣️ 情景例句
and Philip was opening his first medical office.
而Philip则第一次开诊所。
Your right hand is swollen.Does it hurt?
你的右手是肿的.它受伤了吗？
Well, have you forgotten already?
嗯，你已经忘了吗？