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真正的护城河是用户对你的依赖。
The real moat is users' dependence on you.
The story of chemistry is the story of humanity’s quest to understand the world.
You don’t have to be the best, you just have to try your best.
"We are all in the gutter, but some of us are looking at the stars."
"每一句话都有其重量,每一个词都有其意义。"