Resistac
瑞西斯达克铜铝合金
🗣️ 情景例句
are important for the sales of your book.
对于你这本书的销售很重要。
I'd rather dream than study my chemistry.
我还是做我的梦，总比研究化学好。
When did you bring it to us?
您什么时候送来的？