我放烟火有过一次不愉快的遭遇。

I had a bad experience with fireworks once.

《牛津词典》

她所知道的就是我曾有过一次破裂的婚姻。

All she knew was that I'd had a broken marriage.

《柯林斯英汉双解大词典》

这个镇唯一出名之处就是那里有过一次暴乱。

The town's only claim to fame is that there was once a riot there.

《牛津词典》

There was a huge boom in real estate prices in L.A.

洛杉矶的房地产有过一次巨大的繁荣

耶鲁公开课 - 金融市场课程节选

One time, I paid a beggar when I was driving in my car and I was stopped to the stoplight,

有一次，我给过乞丐钱，当时我在开车，正在等红灯，

不做善事的理由 - SpeakingMax英语口语达人

Now, I've talked about laughter on two separate occasions and on each of the occasions when I talked in front of a large group like this somebody came up to me afterwards and said, "But I can."

我之前也有两次提到过笑,第一次,当我在这么一大群人面前讲完后,都会有人上来跟我说，“我可以”

耶鲁公开课 - 心理学导论课程节选