Pentachlorization
五氯化作用
🗣️ 情景例句
I don't want to be stuck here the rest of my life.
我可不想一生都憋在这儿。
My brother is a member of the faculty.He teaches economics.
我的兄弟是全体教员中的一员，他是教经济学的。
Education, with its cycles of instruction so carefully worked out,
教育，以其教学周期如此精心地安排，