But success breeds expectation, and expectation carries its own cruel weight. Arsenal tore Villa apart in a 4-1 win in late December and victories have been hard to come by in the new year – they have only won three of their last nine league games. Liverpool, Manchester United and Chelsea are still below them in the table but the gap is narrowing. With games against United and Chelsea coming in March, the top-three spot Villa have occupied since they beat Wolves in late November suddenly looks in jeopardy. So does their place in the Champions League next season.
一文搞懂深度学习的反向传播与优化理论！
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What is today’s Moon phase?As of Friday, Feb. 27, the Moon phase is Waxing Gibbous. According to NASA's Daily Moon Guide, 80% of the Moon will be lit up tonight.
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Nature, Published online: 26 February 2026; doi:10.1038/d41586-026-00542-8