换句话讲，生产企业以“低于成本”的价格销售是因为工厂已经建成，如果他们的收费高于竞争市场价或干脆停止生产，他们损失的成本只能更多。
In other words, producers sell at prices that are “below cost,” because, having already built the factories, they would lose even more money if they charged above the competitive market price or shut down production altogether.