Pyrazolone
吡唑啉酮
🗣️ 情景例句
Good afternoon, Mr. Chen. Thank you very much.
下午好，陈先生。非常感谢。
Let the hands get busy, not the mouth.
手要勤劳，嘴莫多说。
We'll have to talk it over some more.
这个我们还得再谈一谈。