1·At the peak of the Washington real estate boom two years ago, buyers were snapping up "presale" properties in the new buildings before the foundations had even been laid.
两年前，在华盛顿房地产繁荣的鼎盛时期，新建筑中的预售房产在还没有打下地基时就会被买家抢购一空。
2·Therefore in recent years the business of commercial housing adopts the way of presale.
因此，近年来商品房的买卖大多采用预售的方式。
3·The practice of the presale system makes the corporality entity default temporarily, the symbol system of the commodity housing becomes the carrier for the meaning.
预售制度的实施使商品住宅物质性实体暂时缺席，商品住宅符号体系成为意义的载体。