速 sù HSK3 quick Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: velocity All meanings 3 sù 3 fast 2velocity 1 1 sentence for 速 (sù — velocity) 这辆赛车的最高时速超过了三百公里。 zhè liàng sàichē de zuì gāo shí sù chāoguò le sānbǎi gōnglǐ. This racing car's top speed exceeds 300 kilometers per hour. Source: Dong Chinese Dictionary