耳的解剖 我觉得不错的视频 https://www.bilibili.com/video/BV1zR4y1t7MF/鼻https://www.bilibili.com/video/BV1c44y1n7Mo/?spm_.search-card.all.click
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.