the margin for margin purchase
保证金购买的保证金
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Generic drugs help drugstore profitability because they provide a wider margin between the cost for the pharmacy to purchase the drugs and the reimbursement received.
NPR: CVS Caremark 1Q Profit Soars 23 Percent
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