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The discovery of gravitational waves was a testament to the power of human ingenuity and perseverance.
"The world is full of signs and wonders, but we walk past them every day without seeing."
The writer must be able to superintend himself and criticize himself.
偏差和方差之间的权衡是机器学习中的一个基本概念。
食品安全是水产养殖的生命线,任何时候都不能放松。