Pentafluorination
五氟化反应
🗣️ 情景例句
Ah. She's out.
啊。她出去了。
What are you looking at? Never seen this before.
看什么看？没看过啊！
While they were talking it began to rain and Dimitri stayed in Aleko's house until the rain stopped.
就在他俩说话的时候，天下起了雨，迪米特里便呆在阿列科家里避雨，一直等到雨停为止。