dry slope
noun [ C ] uk/ˈdraɪ ˌsləʊp/ us/ˈdraɪ ˌsloʊp/ (also dry ski slope)
（练习用）人造滑雪斜坡
a structure consisting of a slope covered with plastic or some other material on which people can ski in areas where there is no snow
dry-slope skiing 人造斜坡滑雪