由于他的“举动”发生在过去，所以照片是其行动的唯一体现。

Since his "action" is in the past, the photograph is its sole embodiment.

youdao

最剧烈的增加发生在过去20年。

The most dramatic increases took place during the past 20 years.

youdao

这记录发生在过去的事件。

This records an event that occurred in the past.

youdao

This is the best thing that has happened to the violin in the last hundred years.

这是过去的几百年中,发生在小提琴身上最好的事

耶鲁公开课 - 聆听音乐课程节选

And something that's happened in the past that's continuing to happen.

或者在过去发生的某事，现在仍在继续。

I've been 课堂 - SpeakingMax英语口语达人

Something that was far gone in the past.

这些事都发生在遥远的过去，

I was 课堂 - SpeakingMax英语口语达人