This has forced airlines to discount fares heavily in order to spur demand.这迫使航空公司对机票大幅打折来刺激需求。This has forced airlines to discount fares heavily.这迫使航空公司将机票大幅打折。However, traders tended to discount the rumor.然而，商人往往不相信这一谣传。The store promised to discount prices at 10%.该店承诺所有商品打10%的折扣。