Perfluorotripropylamine
全氟三丙烷
🗣️ 情景例句
I'm concerned.
我很担心。
Health and understanding are the two great blessing of life.
健康和融洽是人生两大幸事。
I could not catch your question. Could you repeat it, please?
我没听清楚你们的问题，你能重复一次吗？