I have given incidents that came to my knowledge, but they remain obscure because I do not know the reasons that led to them.

我把自己知道的一些事情记载下来，但是我写得并不清楚，因为我不了解它们发生的真实原因。

On the day of the funeral I came downstairs to find Mum cleaning furiously in preparation for the funeral guests, even though to my knowledge nobody was coming back to the house.

— 葬礼那天，我下楼时发现妈妈在为参加葬礼的客人做准备，正在疯狂地打扫卫生，尽管据我所知没有人回到家里。