名词
中文翻译：讨价还价
同义词：
['deal', 'bargain', 'barter', 'haggle']
例句：
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1.They are negotiating a good price for the house.
他们正在为这所房子讨价还价。
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2. The saleswoman was bargaining with the customer for a better deal.
销售员正与顾客讨价还价，争取更好的交易条件。
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3. He haggled with the seller to get a lower price for his car.
他与卖家讨价还价，以获得更低的汽车价格。