Sorry for the busy end of the month and the end of the year.

  The end of the month and the end of the year are busy, sorry.

   Recently updated the question, because the end of the month is too busy.

  The end of the year and the end of the month are quite busy.

   This book is expected to be finished in two months, and the new book is ready to be published.

  Thank you for your company all the time, Mengdun will continue to work hard!

  (end of this chapter)