Maybe i 'll be busy before i go to sleep, i wanna write something down.i’ll go to Nanjing to do some experiments about switch power supply EMC with my schoolmates tomorrow morning.we have bought the tickets.it will take us 2.5 hours to get there.then we may come back in the afternoon.after that,i have to pack my things,because i need to go back home (Kunshan)the day after tomorrow.you know,i have an interview on next Monday.maybe i'd better prepare for it , however,i really don't know what i can do.