Perlit
波利特铸铁, 珠光体铸铁
🗣️ 情景例句
the bank needs to be sure
银行需要确定
You two don't have much contact
？ 你们俩没怎么联系吗？
If you order in large lots, we'll reduce the price.
如果你大量订购，我们可以降价