: Happy birthday, 1 day off!

Haha, today is my birthday, I have a day off to nourish my spirit and sort out my thoughts. The book is coming to the end, and I try to write as wonderfully as possible. Write down everything you can think of, any shallow views on the future direction of technology, and try not to miss any regrets.

"Military Technology" happy birthday, take a day off! It's in hand, please wait a moment,

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