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Snap 发布 2195 美元 AR 眼镜，押注后智能手机时代
Snap unveils $2,195 AR glasses as CEO Evan Spiegel bets on post-smartphone future
Snap is launching its first AR glasses geared toward the broader public instead of developers.
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