Tercod
碳化硅耐火材料
🗣️ 情景例句
Can you assist me in this matter?
这件事您能帮助我吗？
He is distinguished as an economist.
他是一名著名的经济学家。
They were in fashion last year and the year before last.But they're not in fashion this year.
这鞋在去年和前年时兴，而今年已不流行了。