Sometimes,it describes something that is not yet ripe or finished.

VOA: special.2010.05.23

And it is not always easy to answer, because sometimes they do not always make their deepest or most fundamental questions altogether clear.

答案并不总是简单的，因为有时候它们不总是,让那些最深刻和最基础的,问题一起清楚地呈现。

耶鲁公开课 - 政治哲学导论课程节选

I think they sort of really understand that maybe sometimes they see things to them they don't quite understand what it is because it's not familiar to them, but it's sort connect to your own life.

我认为他们,知道有时候,自己看到一些事物不理解,是因为,对那些事物不熟悉，但他们与你的生活相联系。

麻省理工公开课 - 媒体、教育、市场课程节选

Sometimes it is an emergency, but not always.

VOA: standard.2009.09.28

Here, too, gets a little ugly and this is why I tend not to like this construct, at least in C, but sometimes it's necessary or it's the simplest way to achieve this goal.

这里也有点难看的，这也是为什么我,不太喜欢这个结构，至少在C语言中，但是有时它是必须的,或者它是达到目标最简单的方法。

哈佛公开课 - 计算机科学课程节选