名词
中文翻译：销售契约
同义词：
['sale deed', 'sales contract', 'purchase agreement']
例句：
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1. The seller agreed to sell thehouse for $500,000.
卖方同意以50万美元的价格出售这所房子。
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2. Thebuyer has signed the deed of sale and will paythe full price.
买方已经签署了买卖契约，并将支付全部价格。
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3. The deed of sale was notarized bya notary public.
买卖契约由公证人公证。