The time of delivery in the offer is valid 'ifunsold'.
是…如果未售出的话，交货时间在报价单上有效。
2
Alternatively, if the seller has set a minimum sale price in advance (the 'reserve' price) and the final bid does not reach that price the item remains unsold.
或者，如果卖家已经提前设定了最低售价(“保留价”)，而最终的竞价没有达到这个价格，拍卖品则不出售。
3
But even if the overall number of unsold units is not as bad as feared, it does not capture the full effects of oversupply.