Polypak
苯乙烯、二乙烯苯共聚物
🗣️ 情景例句
They are above average 85. I'm among the upper third of my class.
我的平均成绩在85分以上。我是全班第三名。
I was this close!
就差那么一点。
Yet all these things, different as they seem, have one thing in common.
然而所有这些东西，看上去虽不同，但却有一个共同点。