a frame attached to a wagon to increase the amount of hay it can carry
同义词:hayrig
hayrack详细解释
hay.rack n.(名词)A rack from which livestock feed.饲料架:喂养牲畜用的草料架 A rack fitted to a wagon for carrying hay.装草架:大车上用于装运干草的架子A wagon fitted with such a rack.装有类似架子的大车