Acierate
v. 化铁为钢, 掺碳, 增碳
🗣️ 情景例句
You know airports.
机场的事你是知道的。
We have an extended warranty available at extra cost.
对于额外价钱我们有较长的保证期限。
in the end, we stay at home and look after everything!
我们呆在家里来照看一切。