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如果你明智地利用经验,那么没有什么是浪费时间。
"In observational studies, we often have to rely on assumptions that are not directly testable."
我从来不是一个说"我想成为榜样"的人。但后来你意识到你是榜样,就必须注意自己的言行。
Innovation is not just about technology; it's about changing the way people think and work.