Niobus
三价铌的
🗣️ 情景例句
If you can confirm that you wish to proceed with a distributorship of our company,
假如你能肯定你们愿意同我公司建立销售关系，
Yes, we should try to contact more.
是的，我们应该联系多点。
Was the noise a cause of the illness, or were the complaints about noise merely a symptom?
是噪音引起了（精神）病呢，还是（精神）病的症状之一是对噪音的抱怨？