名詞 bidder:

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

1. The registration of bidder have already begin.
   投標都登記注冊工作已經(jīng)開始。
2. Competition between bidders for this valuable painting has been keen.
   拍賣時各出價人對這幅名畫競爭很激烈。
3. No bidder shall be permitted to alter his bid after the bid has been open.
   開標以后，任何投標人都不準再修改投標。
4. Bidder shall have the right to refuse to grant such an extension of validity of bid without forfeit their bid bond.
   投標人有權拒絕延長投標有效期限并不會因此而失掉其投標保證金。