变速 biànsù change speed Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: variable-speed All meanings 2 biànsù 2 change speed 1variable-speed 1 1 sentence for 变速 (biànsù — variable-speed) 这种变速电钻可以根据不同的材料调整转速。 zhè zhǒng biànsù diànzuàn kěyǐ gēnjù bùtóng de cáiliào tiáozhěng zhuànsù. This variable-speed drill can be adjusted for different materials. Source: Dong Chinese Dictionary