The only effective cost is your time.
唯一需要花费的只是你的时间。
But how to carry out an effective cost control?
但是如何才能进行有效的成本控制呢？
Reasonable and effective cost control and continuously improve customer satisfaction.
合理、有效控制成本，不断提高客户满意度。
Reasonable and effective cost control and continuously improve customer satisfaction.
合理、有效控制成本，不断提高客户满意度。
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