Silfrax
碳化硅高级耐火材料
🗣️ 情景例句
Do you want a state-of-the-art machine?
你想要台配置最好的机器吗？
A good maxim is never out of season.
至理名言不会过时。
I argued that if I spent less time exhausting myself at exercises in the morning,
我辩解说，早晨少耗费精力锻炼，