您即将离开北大未名BBS，访问
https://www.bilibili.com/video/BV1f14y1k7MG/?spm_id_from=333.337.search-card.all.click&vd_source=3c1c7b833a4485d2d21498a733b4f9bc
该网址与北大未名BBS无关，提醒您访问时注意判断信息真伪。
继续访问