I never expected that you would compete with me by undercutting your prices.我从没想到你会以削价的方式与我竞争。Their ships in American ports sometimes auctioned off whole cargoes to the highest bidder, undercutting American prices.他们在美国港口的船只有时将整船货物拍卖给出最高价者，售价低于美国的价格。