Acieration
金属镀铁硬化
🗣️ 情景例句
I think the problem can be gotton over without too much difficulty.
我认为问题不难解决。
Waste of time is the most extravagant and costly of all expenses.
浪费时间是一切花费中最奢侈豪华的费用。
Bye!
再见！