We have accepted your firm offer.

我们已收到了你们报的实盘。

Are the prices on the list firm offer?

上面的价格是实盘吗？

Be the price on the list firm offer?

报价单上的价格是实盘吗？

Can I tell my company this is a firm offer?

我回去可以跟公司说这是确定报价吗？

Our firm offer stands good for 48 hours.

我们的实盘有效期为48小时。