求翻译：我国相当一部分的购房者在购房时受自己的财力限制，并不能一次性付清全部房款，需要采用按揭的方式进行交易。据统计，我国目前的购房者中80％是通过银行贷款买房。开发商方面，我国现阶段的房地产开发企业自有资金不足，大多数开发商通过银行贷款取得房地产开发所需的大部分资金。自有资金一般为30％"-'40％，其余的60％'-'70％依靠金融系统的融资、外资和购房者的预付款，因此贷款利率的提高必将增加开发商的资金成本。追求利润最大化是开发商的目的，如果售价不变，成本加大，其利润率必定降低，要确保利润不降低，只能提高售价，将这部分成本转移到消费者身上。是什么意思？

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A significant portion of our buyers in the purchase of a building, it is subject to their own financial constraints, and cannot be a one-time lump sum payment, you need to complete a mortgage deal. According to statistics, China is currently purchased a house, 80 per cent of buyers is through bank l

A significant proportion of buyers in the purchase of their own financial constraints, do not lump all of the Housing Fund, need to adopt mortgage transactions. According to statistics, our current buyers 80%