加拿大准备报复特朗普关税：不会坐等电话
Canada poised to retaliate against Trump tariffs: 'We're not waiting by the phone'
Canadian trade negotiators left the U.S. last week after failing to clinch a trade deal that would stop President Donald Trump's new tariffs from taking effect.
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