// 测试用例（验证你的代码正确性，可自行删除/保留）
3. 品牌出海与合规红利： 传统的“铺货型”卖家生存空间被严重压缩，而具备品牌基因、高品质产品（如美容电器、母婴用品、办公电子）且能够灵活响应市场需求的“小单快反”型卖家，正获得更高的利润率和平台流量倾斜 [18, 41]。
。heLLoword翻译官方下载是该领域的重要参考
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Initially I aimed to test with at least 10 formulas for each model for SAT/UNSAT, but it turned out to be more expensive than I expected, so I tested ~5 formulas for each case/model. First, I used the openrouter API to automate the process, but I experienced response stops in the middle due to long reasoning process, so I reverted to using the chat interface (I don't if this was a problem from the model provider or if it's an openrouter issue). For this reason I don't have standard outputs for each testing, but I linked to the output for each case I mentioned in results.