// 单调栈：存储索引（而非值），栈内索引对应的nums值保持「单调递减」
Madeleine Finlay sits down with science editor Ian Sample and science correspondent Nicola Davis to discuss three eye-catching stories, including the impact of a powerful psychedelic on depression, answers on the death of Russian opposition leader Alexei Navalny, and an explanation to the mystery of why humans have chins
，推荐阅读搜狗输入法2026获取更多信息
Everything in Starter, plus:
人类尊严，AI 是工具还是「更好的人类」？