Friday at 11? I'll put it in my diary.

　　星期五11點？我要把它記在記事本里。

　　His diary was not published during his lifetime.

　　他的日記在他生前未曾發表過。

　　Do you keep a diary?

　　你經常記日記嗎？

　　The events were faithfully recorded in her diary.

　　這些事件在她的日記中如實地記錄了下來。

　　His excuse for forgetting her birthday was that he had lost his diary.

　　他辯解說因為日記本丟了才忘了她的生日。