The airmen don't fly until they're needed. That means waiting, sometimes for hours or even days.

VOA: standard.2010.04.27

So, remember when you're looking at your periodic table, don't forget about the lanthanides, sometimes they come into play.

因此，要记住，当你在看元素周期表时，不要忘了镧系元素，有时候也会用到它们。

麻省理工公开课 - 化学原理课程节选

That's because the ideas of physics don't fall into 75-minute segments and sometimes they spill over a little bit.

因为物理的知识不是死板的75分钟课程,所以我会有时候做一些微调

耶鲁公开课 - 基础物理课程节选

They bind sometimes better than the natural ligand does, but they don't create the right biological reaction.

结合的比天然配体和受体的的结合更紧密,但不能产生相同的生物效应

耶鲁公开课 - 生物医学工程探索课程节选

Sometimes people don't realize that the relationship they're in is abusive-- it's psychologically or emotionally abusive.

有时，人们没有意识到,自己被虐待-,心理和感情上受虐待。

耶鲁公开课 - 心理学导论课程节选

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

Well they--it's a balancing -they have to balance -sometimes they don't like the choice they made but the advantage to being public is that people trust you more.

他们...这其实是种平衡,他们必须权衡利弊,他们并不希望公司上市,但上市的好处是,能够因此取得公众更多的信任

耶鲁公开课 - 金融市场课程节选