In addition, cloud users must typically specify a project end date; unless this date is extended, cloud resources are automatically returned to the available resources pool on that date.

此外，云用户通常必须指定项目结束日期；除非这个日期延长，则云资源会在此日期自动返回可用资源池。

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Kickstarter emphasizes project-based funding campaigns, and the projects they accept generally need to have a definite end-date and clear metrics for completion and success.

FORBES: Crowd-Funding Campaign Lessons Learned: What You Need to Know