We cannot make a precise calculation of the price until we have all the costs. 除非我们知道所有成本,否则不能准确地计算出价格。
The Chinese party would often list the cheaper prices of other companies to force the other party to lower the price. 当对方报出价格后,中方常常举出其他公司更便宜的价格,以迫使对方降价。