We cannot make a precise calculation of the price until we have all the costs. 除非我們知道所有成本，否則不能準確地計算出價格。
The Chinese party would often list the cheaper prices of other companies to force the other party to lower the price. 當對方報出價格后，中方常常舉出其他公司更便宜的價格，以迫使對方降價。
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