Read Edit View history 音速 yīnsù speed of sound Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 音速 · yīnsù · speed of sound 2026/03/04 音速 yīnsù speed of sound speed of sound 这架飞机的飞行速度超过了音速。 noun created sense Mar 4, 2026, 02:25 AM