Nicalon
碳化硅
🗣️ 情景例句
Well, it's hard work.
嗯 这种工作很辛苦。
What is the total circulation of this journal.
这份报刊总发行量多少？
and that fool, Horst, aimed a fire extinguisher at me.
但那个傻瓜霍斯特把灭火器对准了我。