Catalyst refucer
[建] 催化剂还原器
🧩 词语组成解析
🗣️ 情景例句
As a matter of fact,
事实上，
Will you please repeat it?
请你重说一遍好吗？
He says that all this happened after I started work.
他说，这一切都是在我开始工作后才发生的。