这事绝无仅有；不会再发生了。

It was just a one-off; it won't happen again.

《牛津词典》

她说她很抱歉，这种事不会再发生了。

She said she was sorry and that it wouldn't happen again.

youdao

警长向我们保证这种事不会再发生了。

The sheriff promised us that will not happen again.

youdao

The little insects were crawling around, the plants were there. And come back and look at it, over a period of weeks, and see what's changing.

我可以看到昆虫爬来爬去，还看到有些植物，几个星期后，再来看，看看发生了什么变化。

普林斯顿公开课 - 人性课程节选

Like I don't know what's around the corner. I might not be here in a week

我不知道会发生什么，也许再过一个礼拜我就不在了，

我的理想是 - SpeakingMax英语口语达人