当武装警察突袭了这辆汽车时，这起恐怖活动就此结束。

The terror ended when armed police swooped on the car.

《柯林斯英汉双解大词典》

在活动结束的时候，我们一共募集了5000元，我们把全部钱捐给了当地的一家孤儿院。

At the end of the activity, we raised 5000 yuan in total, and we donated all the money to a local orphanage.

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城市艺术委员会将于2016年7月23日（周四），也就是学校活动结束前，来取箱子。

Boxes will be picked up by the City Art Council on Thursday, July 23rd, 2016, before the end of the school day.

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There'd be certain activities perhaps, for example putting a gun to your head, that would put an end to your life.

也许会有某些特定的活动，比如用枪指着你的头，会结束你的生命。

耶鲁公开课 - 死亡课程节选

So that's, this is over. They've got other events too, all over,

所以，活动结束了。他们还会有其它活动的。

有很多活动 - SpeakingMax英语口语达人