One of the earliest studies of the dynamic warehouse location problem was done by Ballou.

对动态仓库选址问题的最早研究人员之一是巴罗.

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Mr. Ballou fell into the last category, and he always had a reason why.

巴卢先生属于最后一类, 而且他总有理由.

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The only problem was that Mr. Ballou never seemed toany money to pay for it.

惟一的问题是,巴卢先生似乎从来没钱支付工钱.

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