Metcolizing
铸铁表面(喷)渗铝法
🗣️ 情景例句
We've got permission to go inside the old building
我们已获 进入那栋老建筑物
Happy is he that is happy in his children.
对自己孩子感到高兴的，才是幸福的人。
I'll see that doesn't happen again.
我会注意以后不会再发生那样的事。