That's because nobody trusted these banks they could go under any day and so they tended to sell at a discount.

那是因为没有人相信这些银行，它们可能在任何一天破产，所以它们倾向折价出售。

They are often available at a discount.

它们经常可以以折扣价买到。

Right now, jeans are at a discount.

现在牛仔裤打折销售。

Her husband tries to buy everything at a discount.

她丈夫只买打折的东西。

The latter will presumably trade at a discount to the former.

而后者可能会打折扣与前者进行交易。