俄罗斯称击落1900架无人机，乌克兰对莫斯科发动最大规模袭击
Russia claims to have shot down over 1,900 drones in Ukraine’s largest attack on Moscow
The massive drone assault on Moscow highlights the escalating resource strain on Russia's air defenses and potential shifts in Ukraine's tactics.
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