Etolizing
多孔粉末烧结零件电解覆层法
🗣️ 情景例句
What is language for?
语言到底是用来干什么的？
I will go out with him is he asks me.
我会和他出去，假如他要求我的话。
The train was traveling at 120 miles an hour.
火车时速一百二十英里。