I was out of town for the last few weeks, and semester is over soon, in the vacation, i would take good rest and prepare the class for next semester. Today is the first day of my vacation, i cooked, and enjoyed the dishes. i started to take walk in the evening for one hour, since i haven't had it for 3 weeks, so, today is pretty tired, of course, high temperature is also one of the other reason, 36.5 degree.