Recarburizer
[机] 增碳剂
🗣️ 情景例句
When you start discussing politics, I'm completely out of my depth.
你们一谈论政治，我就一窍不通了。
No, I can't go to bed till she says Good night to me.
不，除非她向我道晚安，不然我睡不着。
I'm looking at the blackboard.
我在看黑板。