Alitization
渗铝, 铝化(一种钢工件处理法)
🗣️ 情景例句
Thank you.
谢谢你。
I went to see a friend of mine.
我去看了一个朋友。
The English and Maths papers weren't easy enough for me.
英语和数学试题对我来说不很容易。