bidder

1.contested with other bidders for the antique.

与古董的其他出价人竞争

2.TV franchises will be auctioned to the highest bidder.

电视特许经营权将拍给出价最高的投标人。

3.The other bidders for the contract complained that it had not been a fair contest.

其他竞标人抱怨说该合同的竞标不公平。