Refrax
金刚砂砖, 碳化硅耐火材料
🗣️ 情景例句
I miss them.
我想念他们.
Do I need a reservation for the dining car?
我需要预订餐车吗？
On the third lap, the Class 3 and Class 1 runners both ran very fast.
在跑第三圈时，3班和1班的运动员都跑得非常快。