What is the letter written by Grandpa Xiong Li Bingli to Dudu? Kneel for the text!

Dudu, long time no see. How are you? How time flies! It's time to say goodbye, thank you. I'm so glad to meet you at the most lonely and helpless time in my life. Your appearance brought me back to that wonderful and happy time. Every time I see you, there is always a long-lost sense of happiness. Like an angel, you have been with me, let me understand: love and affection. Is the most precious thing in our life. Thank you, DuDu. One day you will grow up, too. Grandpa left you these simple hopes. You will always remember grandpa and this happy time, and I hope you know that grandpa will always love you.