翻译以下（感谢各位）

During the war I was suffering a lot. I used the diary note to write dwon what had happen in order to remember it when i become old

望采纳！！！

During the war, I suffered a lot. I kept diaries to set down my experiences so I would remember them when I was old.

During the war I was asked by a lot of suffering. I used the diary note of their own experiences in order to later be able to remember the old.