Silundum
n. 硅碳刚石
🗣️ 情景例句
Jack's genius at business.
杰克是个经商的天才。
We are anxious to know how long it will take you to deliver the goods.
我们急于知道贵方多长时间能交货。
Yes, he did.He telephoned at nine o'clock.
是的，打了。他在9点钟又打电话。