bidder

名词 bidder:

1. someone who makes an offer
2. someone who makes a bid at cards

1. The registration of bidder have already begin.
   投标都登记注册工作已经开始。
2. Competition between bidders for this valuable painting has been keen.
   拍卖时各出价人对这幅名画竞争很激烈。
3. No bidder shall be permitted to alter his bid after the bid has been open.
   开标以后，任何投标人都不准再修改投标。
4. Bidder shall have the right to refuse to grant such an extension of validity of bid without forfeit their bid bond.
   投标人有权拒绝延长投标有效期限并不会因此而失掉其投标保证金。