translation.en: Classically these pick workers will spend 60 or 70 percent of their day wandering around the warehouse. They'll often walk as much as 5 or 10 miles in pursuit of those items of inventory.
translation.zh: 在传统工作模式下 这些工人一天有60%到70%的时间 都浪费在行走当中 他们经常要在仓库中 步行五到十英里 寻找订单中的货物