光学: optics; photology; photics食指: index finger鲨: shark充气光学食管镜: pneumatic optical esophagoscope食指: index finger; forefinger; index大学食谱: college diet大学食堂: cafeteria; le resto-u = le restaurant universitaireindex食指: index finger; forefinger搓食指: twisting index finger食指, 示指: digitus indices; finger second; index finger食指,示指: digitus indicis食指腱: tendon of index finger拇食指间隙: thumb index cleft; thumbindexcleft膳食指南: dietary guidelines伸食指肌: exte or indicis; extensor indicis食指背面: dorsal surface of index finger食指长伸肌: extensor indicis muscle食指的旋律: hitosashiyubino melody食指第一节: the proximal segment of the index finger食指浩繁: many mouths to feed; densely populated食指魔丐: bckcn食指内侧面: medial surface of index finger食指皮肤: skin of index finger食指屈肌: musculi flexor indicis食指伸肌: extensor indicis muscle; extensor muscle of index finger