[, ] () all the things that a business pays for in order to produce and sell its products成本基数◆The firm is seeking to cut its cost base by renegotiating salaries.公司正在通过重新协商工资，设法削减成本基数。⨁a high / low cost base高／低成本基数⨁to adjust / control / cut / lower / reduce a cost base调整／控制／减低／降低／减少成本基数