[ әk.selә'reiʃәn ] 柯林斯星级 ★☆☆☆☆ BNC词频 7072 COCA词频 8018 n. 加速, 促进, 加速度 [化] 加速度 n. an increase in rate of change n. the act of accelerating; increasing the speed n. (physics) a rate of increase of velocity 复数: accelerations 英汉双解字典由 ECDICT 提供