Ketonization
酮基化作用
🗣️ 情景例句
Leave well enough alone.
得过且过，见好就收。
It is incredible that he should have gone to live in such a dangerous country.
他竟然搬到那样危险的国家去住，实在令人无法相信。
When will you have more?
什么时候你们会再进货呢？