Siltite
粉砂岩
🗣️ 情景例句
I'm sick of English, I want to learn French.
我讨厌英语，我想学法语。
He majored in Computers.
他主修计算机。
Would it be possible for me to have a closer look at your samples?
可以让我参观一下你们的产品陈列室吗？