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有一位煞费苦心的送奶人,每天早晨出发前都要把一个32加仑的牛奶桶盛满纯牛奶.这是他所有客户这一天的全部定货.他的客户分布于
There was a painstaking milkman who had to fill a 32-gallon milk bucket full of pure milk before leaving for the morning. This was all orders for all his clients on this day. His customers were distributed