Polydivinylbenzene
聚二乙烯基苯
??? 情景例句
Oh, what are you doing tomorrow?
噢， 明天你打算做什么？
John has extracurricular activities. He's on the football team.
約翰有課外活動(dòng)。 他參加了足球隊(duì)。
I read a few lines, but I did not understand a word.
我讀了幾行，但一個(gè)字也不懂。