Polyvinylidene
a. [化]聚偏二乙烯的
??? 情景例句
I like to listen to the music and to play piano and occasionally to go swimming.
我喜歡聽音樂、彈鋼琴，有時候去游泳。
This is a radio.
這是一臺收音機。
Shall I call you James or Jim?
我是叫你詹姆斯呢還是叫你吉姆？