Olefinicpolymerization
[化] 烯烃聚合
🗣️ 情景例句
Of course. I'm so sorry for Michelle.
当然。我为Michelle担心。
Do you ever learn Chinese during the holidays?
你曾经在假日期间学中文吗？
Who but Jack would do such a thing?
除了杰克谁会做这种事呢？