It costs, at manufacturing point, six dollars to produce these, and it costs the establishment another six dollars to distribute it, so the market price in a free market would be about 12 dollars per net.
这些蚊帐的生产成本是六美元， 然后又要这些机构花费六美元将这些蚊帐输送出去， 因此在一自由市场里这些蚊帐的市场价格将会是十二美元。