Nicalon
碳化硅
🗣️ 情景例句
I haven't decided whether I will go camping or not, but it is certainly possible.
我还没决定是否去露营，但还是有可能去的。
May I reconfirm my flight?
我可以确认我的班机吗？
How long are you staying in Xi'an?
你要在西安呆多久？