Read Edit View history 凹镜 āojìng concave mirror Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 凹镜/凹鏡 · āojìng · concave mirror 2026/03/04 凹镜 / 凹鏡 āojìng concave mirror concave mirror 凹镜可以将光线汇聚在一点。 created sense Mar 4, 2026, 02:25 AM