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Ray Hsu-Jui Chang
I am Ray, and I was born in 2010. I like to invent new things and I help my brother Andrew and Father Shih-Yu Chang in preparing this great book: Knowledge Departments and Invenrelation.I am Ray, and I was born in 2010. I like to invent new things and I help my brother Andrew and Father Shih-Yu Chang in preparing this great book: Knowledge Departments and Invenrelation.