Preoxidation
预氧化
🗣️ 情景例句
Well, there's a lot to think about.
噢 有许多事需要考虑。
My watch says two o'clock.
我的表是两点钟。
Choose any subject. Something about England, for example.
你可以选任何题日。例如，你可以谈谈英国的情况。