Because of the weather is too hot in changsha. Several days it didn't rain.I can't bear it. In the afternoon, i go out  buy a shorts  from a shop where i used to go.Due to i ususlly put on 29 , I ask  the boss give me one which the size is 29 naturelly,and i didn't try.But when i go home put on it i find it too small .I think i must put on the one that the size is 30.Maybe i  gain weighte.Tomorrow i will go to change it.