Prerefining
预先精炼
🗣️ 情景例句
Are you free?
您有空吗？
No, not really. It doesn't make any difference.
没有，真的没有，没有不同看法。
first, those whose work is work and whose pleasure is pleasure;
第一类是分清工作是工作，娱乐是娱乐的人；