This weekend,Project Green Search will announce its selection of a new model for the environmental "Green Revolution."

VOA: special.2009.11.06

- I mean that-- what began as, ah we'll do this this weekend turned out to be like a 100-hour project to revamp this whole thing.

我是说，这周末我们要做的是,改进整个工程，但这可能需要花100个小时。

哈佛公开课 - 计算机科学课程节选