把你的手机对准一栋建筑物，就会弹出正在出租或出售的住宅单位，以及相应的价格。
Point your phone at a building and the units for rent or sale pop up, complete with prices.
为了多销售一单位产品，企业必须将所有出售产品的价格降低，而不仅仅是最后一单位产品。
In order to sell an additional unit of output the firm must lower the price of all units sold (not just the marginal one).
主体计划包括兴建楼宇，并以折扣价格出售单位给合资格的申请人，但申请人须遵守五年的楼宇转售限制。
The Main Scheme involved the construction of flats which were sold to eligible applicants at discounted prices subject to a five-year resale restriction.
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