Read Edit View history 速率 sùlǜ speed Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 速率 · sùlǜ · speed 2026/03/04 速率 sùlǜ speed speed; rate 光在真空中的传播速率是恒定的。 noun created sense Mar 4, 2026, 02:25 AM