Porapak
聚苯乙烯型色谱固定相, 多孔性聚合物微球
🗣️ 情景例句
Those are you just need.
那正是你们所需要的。
Who marrieth for love without money,hath good nights and sorry days.
为了爱情，无钱结婚，夜来欢娱，白天悔恨。
I will continue my learning, though I am tired of learning English.
尽管我很烦英语，我还是要学它。