noun
a U-shaped structure or U-shaped channel cut into snow, used for performing complicated movements in skateboarding , rollerblading and snowboarding
noun
a U-shaped structure or U-shaped channel cut into snow, used for performing complicated movements in skateboarding , rollerblading and snowboarding
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005