Today I get up at 14:00.I have been to very tired.
I got a trouble in two nights earlier.
My Macintosh didn't get started running.
I checked my hard disk and OS. But unremedied it.
At last I tried to re-install the OS and restart Mac.
I did some refurbishing operation.
I went to my bed at 4:00.
But I got up at 8:00 in yesterday.