He said it was a historic event and that he is certain it will inaugurate a new era and a new relationship between the two countries.

VOA: standard.2009.04.17

For my perspective, even if you understand God to be the creator of the world, I don't think that means that God is causing a certain natural event to happen at certain time.

从我的角度来说，即使你明白,上帝是世界的创造者，但这并不意味着上帝,导致了某个自然界的现象在特定的时间发生。

普林斯顿公开课 - 人性课程节选

Use "When" whenever you want to ask about the timing of a certain event or series of events.

当你想要询问一个或一系列事件的具体时间时，你可以用“When”句型。

When 课堂 - SpeakingMax英语口语达人

Such a disruption is, hopefully, not a certain event, and would probably be a temporary condition.

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Not, as is currently planned, so that people can time their ads to a certain event: but that people will pick up passing events and use them as the basis of short but related advertising campaigns.

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It will screen in the Un Certain Regard event, as will James Franco's latest directorial effort As I Lay Dying.

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