The Langlands program is a challenge to the boundaries of mathematical knowledge.
认知的研究就是研究人类如何理解他们的世界。
The true cost of fish should include the cost of keeping our oceans healthy.
孔子说:“《诗经》三百首,用一句话可以概括,即:‘思想纯洁’。”
随机评估可以帮助我们了解发展中哪些措施有效,哪些无效。