She adds, one has to ask oneself, how is something like this even possible again in Germany?

她说，人们要问问自己，这种事情怎么能再次在德国发生？

The key is to engage with the material actively and ask oneself questions that promote deeper understanding.

关键是积极参与材料并问自己问题，以促进更深入的理解。

'All the same, when one thinks of those to whom one is so dear, it must be difficult not to ask oneself if one was right in cutting oneself off from them'.

“尽管如此， 当一个人想到那些自己如此亲爱的人时，一定很难不问自己与他们断绝关系是否正确” 。