quickstep

详细解释:n. 齐步, 快步进行曲, 快狐步舞

英语解释：

名词 quickstep:

military march accompanying quick timea ballroom dance with both quick and slow steps

动词 quickstep:

perform a quickstep

详细解释：

quick.step

n.Music （名词）【音乐】
A march for accompanying quick time.
快步曲：一种伴有快节奏的舞步