Sintropac
加铜铁粉; 铁铜混合粉末
🗣️ 情景例句
Well, it's a very easy operation, Carl.
这是个很简单的手术 Carl。
I will be going to school in September.
我将在九月份上学。
Well, yes, I could do that. But I don't want to do anything alone.
哦，好，这事我能办。但我又不想一个人做事情。