柯林斯詞典arroyo /??r????/ (arroyos) 1. N-COUNT An arroyo is a dry stream bed with steep sides. 旱谷[美國英語] He checked the sandy areas of the arroyo for any tracks. 他檢查了旱谷沙地的所有痕跡。 返回 arroyo劍橋詞典in the southwestern US, a narrow channel in the ground that is usually dry but becomes a stream after heavy rain （尤指美國西南部的）旱谷，干涸的溝壑 返回 arroyo