So it was a little risky but safe in the end because I didn't do anything else with it.

所以它有点冒险但是最终是安全的,因为我没用它做其它的操作。

哈佛公开课 - 计算机科学课程节选

It's safe to say that Lycidas is one of the last poetic works of Milton's that's really consumed with his problem, the problem of fruitless anticipation.

谨慎的说，是弥尔顿最后的,切实地与他自身的问题有关的诗篇之一，他自身关于毫无成果的期望的问题。

耶鲁公开课 - 弥尔顿课程节选

Here, war refuses to let the dead lie in peace, with the notion that not even the dead are safe from it, unaffected by it.

在这里战争拒绝让死者安静的躺着,有一种信念认为即使是死者是安全的，不受其影响的。

耶鲁公开课 - 现代诗歌课程节选

What makes it so safe that it can be put in one of the most sensitive places in your body, in contact with your eye?

是什么使得它足够安全,以至于能放到眼睛,这个人体最敏感的器官之一上

耶鲁公开课 - 生物医学工程探索课程节选

As carefully as people work with radioactivity here, and using often much, much safer radioactive materials than radium bromide, and using them, and special hoods, and having special procedures, they still do a lot of checking with these Geiger counters to make sure everything's safe.

虽然在这里人们,用放射性物质都非常的小心，而且通常用的材料放射性,都比溴化镭要小得多，并且用的时候,都用特殊的容器,特殊的操作过程,但我们平时仍会用。

麻省理工公开课 - 化学原理课程节选

what I'm talking about is a space, a safe space in our lives with our closest friends, with our family, first and foremost, with ourselves, will we have the permission to be human.

我的意思是一个空间，生活中的私密空间，和挚友一起时，和家人在一起时，最重要的是面对自己时，我们要准许自己为人。

哈佛公开课 - 幸福课课程节选