Silfrax
碳化硅高级耐火材料
🗣️ 情景例句
together in a more scheduled way.
能更定时在一起。
No matter what comes up, don't sound nervous.
不论发生什么事情，你也不要显得紧张。
Let us suppose that a child suddenly crosses the road in front of you.
让我们假设一个小孩子突然在你前面穿过马路。