Metcolizing
铸铁表面(喷)渗铝法
🗣️ 情景例句
kick off your shoes, and sit down.
脱掉你的鞋子， 坐下来。
No matter what she says, don't show you are afraid.
不论她说什么，你也不要让人知道你害怕了。
I suppose it's better to be safe than sick.
我想安全总要比生病好。