underbid (-bidding; past and past participle -bid)
[with obj.](in an auction or competitive tendering) make a lower bid than (someone) (拍卖,竞标)出价低于 ■(Bridge)make a lower bid on (one's hand) than its strength warrants (桥牌)低叫
noun
a bid that is lower than another or than is justified 低出价;过低出价