柯林斯词典arroyo /əˈrɔɪəʊ/ (arroyos) 1. N-COUNT An arroyo is a dry stream bed with steep sides. 旱谷[美国英语] He checked the sandy areas of the arroyo for any tracks. 他检查了旱谷沙地的所有痕迹。 返回 arroyo剑桥词典in the southwestern US, a narrow channel in the ground that is usually dry but becomes a stream after heavy rain （尤指美国西南部的）旱谷，干涸的沟壑 返回 arroyo