有人捐赠瓶装水时，伊万和他的家人发起活动筹得了更多的水。

When someone donated bottles of water, Ewan and his family held a drive to get even more.

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通过单击发起活动，创建一个活动来跟踪这个目标。

Create an activity to track that goal by clicking Start an activity.

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而参与更多社交，你可能要发起活动或外出参加聚会之类的。

Or maybe to be social you need to set up events or go out to more gatherings of some kind.

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And a group of alumni decided to launch an initiative called the Civic Value Initiative.

一群毕业生决定发起一项活动,叫做，公民价值观行动。

普林斯顿公开课 - 人性课程节选