... agency y operation 代理业务 price e difference 差价 turnover r 营业额，销售额 ...
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price e difference
价差
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Most of them are, but they have been splitting the difference for years between value (i.e. price and positioning) and volume (i.e. percent of inventory sold).
FORBES: Digital Advertising's Chaotic Evolution
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