Etolizing
多孔粉末烧结零件电解覆层法
🗣️ 情景例句
I like to listen to the music and to play piano and occasionally to go swimming.
我喜欢听音乐、弹钢琴，有时候去游泳。
I ought to go to work now.
我应该现在去工作。
Actually, it is more than we need.
事实上，已超出我们所需要的。