Because the exploitation of real estate needs large capital and long turnover period, the advance booking is gradually taken as an effective method for raising funds by real estate exploiter.

由于房地产开发需要的资金大，且周转时间长，使得商品房预售成为房地产开发商有效筹措资金的方法。

youdao

Entrepreneurs that shun this time-tested method of raising capital, because their investors might make a lot of money, do so at the peril of not achieving their stated goals, which might just include serving the very community Professor Yunus is nobly focused on: fully one half of the world's population.

FORBES: On Civil Society