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亚马逊获6亿美元关税退款，将返还部分客户
Amazon got $600 million in Trump tariff refunds and will pass return along to some customers
The company previously hadn't disclosed whether it would recoup tariff costs after the Supreme Court ruled many of President Donald Trump's levies were illegal.
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力