if (lines.length 0) yield lines;
宇树之前接触过不少头部大脑公司和高校研究机构，有很多模型能力也不错。我们之所以能胜出，核心原因有两个，一是我们的大脑能力扎实，尤其是通过小数据量样本快速学习的能力；二是我们具备快速交付落地的执行力，同时团队也拥有丰富的产品经验。
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adding of swap, error handling will not be explored further.
This does not mean confusables.txt is wrong. It means confusables.txt is a visual-similarity claim that has never been empirically validated at scale. Many entries map characters to the same abstract target under NFKC decomposition (mathematical bold A to A, for instance), and the mapping is semantically correct even if the glyphs look nothing alike. But if you treat every confusables.txt entry as equally dangerous for UI security, you are generating massive false positive rates for 96.5% of the dataset.