Non-firm offers are not final, often with such words as "subject to prior sale" or " subject to our final confirmation".

虚盘不是最终的，经常会有这样的语句“以先售为准”或“须经我方最后确认”。

youdao

The offer for Art. No. 55640 in stock is subject to the goods being unsold. (subject to prior sale, subject to our final confirmation)

所报现货货号55640，以货未售出为准。（以先来先买为准；以我最后确认为准）

youdao

Nor did Chase Bank institute a separate proceeding to attack the validity of the tax sale while the confirmation lawsuit was pending.

FORBES: Chase Tries to Fix Mortgage Screw-up by Arguing Borrower Not Good at Latin

Furthermore, Chase Bank was made a defendant in and received notice of the confirmation proceeding, but simply chose not to take any action to contest the tax sale.

FORBES: Chase Tries to Fix Mortgage Screw-up by Arguing Borrower Not Good at Latin