Perfluoroalkylation
全氟烷基化
🗣️ 情景例句
I researched it for over a year.
我研究了一年多。
What a disappointment.
真是失望透顶。
I wonder if it is possible to arrange shopping for us.
我想能否在我们访问结束时为我们安排一点时间购物。