Leave of absence, and instructions

Recently, I really wanted to write, but because I was busy writing published papers and patents, I was so busy that it was dark, so I took the time to take the time code, but the efficiency was very low, and I haven't written a complete chapter in two days.

I'm sorry, I'm sorry, I'll update it slowly when I'm done. Ladies and gentlemen, please forgive me!

"Interesting Random Journey to the Heavens" Leave of Request, and Instructions is being typed by hand, please wait for a while,

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