Tang Zhihuan raised his eyebrows, and Song Xixi could still know the story of Einstein, saying:

"I don't know."

"Albert Einstein proposed the theory of gravity because he was sleeping under a tree and was hit by an apple, and I dropped a pen in my first physics class in my freshman year of high school.

"The Joy of Sweetness" 129 Tang Zhihuan will be together in this life, in the next life, in the next life, is in the middle of the hand, please wait a moment,

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