Pentafluorination

五氟化反应

🗣️ 情景例句

Where was the house?
房子在什么地方?
All truths are not to be told.
真理并不都能说得清。
carrying with him in his pocket what remained of a bottle of medicine formerly prescribed for an indisposition of Mrs.Carlyle's.
衣袋里装上了一瓶他妻子不舒服时吃剩下的药。
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