I'm back. Hi everyone, It's a long time I have not been here. These days I was super busy for work. I had to work over time more often so that I only slept a few hours a day generally. What's more, I always felt I had got a headache painfully. Fortunately things turn to be much better . I finally finished my major program last week. And in three days I had a good rest. I feel much better now. I'm eagerly to pick up my English study immediately. And Chelsea lost their chance to win the Europe Champion League this morning.