Read Edit View history 凹面镜 āomiànjìng concave mirror Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 凹面镜/凹面鏡 · āomiànjìng · concave mirror 2026/03/04 凹面镜 / 凹面鏡 āomiànjìng concave mirror concave mirror 凹面镜可以用来会聚光线。 noun created sense Mar 4, 2026, 02:25 AM