在大肆渲染中国“实验室泄漏”论的背景下，溯源工作早已超越科学范畴，陷入政治泥潭。眼下，拜登政府指派美国情报机构进行病毒溯源调查的90天期限进入倒计时，不知美国情报部门的“科学工作”能否给世界人民一个满意答案？ The 90-day period for the U.S. intelligence to investigate the coronavirus origins is nearing the end. The scientific community is succumbing to mounting pressure from the U.S. Can the U.S. get what it wants this time? The animation offers some insights.