The cervical spine has been uncomfortable for the past few days, and it has been particularly violent since last night, and I tried to sit down several times to code words, and I couldn't hold on to it after only half a chapter. Lying down intermittently for a day to no avail, take a leave, I'm sorry for you, I said that I had three shifts a day, but because of the problem of the cervical spine, I already owe a lot. I will make it up and apologize again.