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过去是异国他乡;那里的人行事不同。
The past is a foreign country; they do things differently there.
技术可以帮助我们监测森林,但拯救它们的是人类的承诺。
The true measure of a farmer's success is not just yield per acre, but the legacy left for future generations.
In computational learning theory, we seek to understand the fundamental principles that govern learning from data.