Pentacarboxylic acid
[化] 五羧酸
🧩 词语组成解析
🗣️ 情景例句
Why did you stop working?
你为什么要退休？
The mill cannot grind with the water that is past.
覆水难收。
I've been looking forward to visiting your factory.
我一直都盼望着参观贵厂。