The product is the delivery of the largest number of people at the least cost.
该产品是交付人数最多、成本最低的产品。
-- George Gerbner 格伯纳
The product is the delivery of the largest number of people at the least cost.
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The product is the delivery of the largest number of people at the least cost.
该产品是交付人数最多、成本最低的产品。
-- George Gerbner 格伯纳
