slow shutter speed, 慢速快門

A picture taken with slow shutter speed shows members of the group “The Kattfiller” from Attendorn taking part during the Norddeutsche Championship carnivalesque dance sport in Kassel (Hessen), Germany, 28 February 2016. About 1,100 qualified dancers show in different disciplines their skills. (Photo by Swen Pfoertner/EPA)
The Day in Photos – February 29, 2016
http://avax.news/fact/The_Day_in_Photos_February_29_2016.html