柯林斯詞典delta /?d?lt?/ (deltas) 1. N-COUNT A delta is an area of low, flat land shaped like a triangle, where a river splits and spreads out into several branches before entering the sea. (河流的) 三角洲 ...the Mississippi delta. …密西西比河三角洲。 返回 delta劍橋詞典 delta noun (RIVER) [ 可數(shù)名詞:有複數(shù)形式的名詞 ] geography an area of low , flat land , sometimes shaped like a triangle , where a river divides into several smaller rivers before flowing into the sea 三角洲 the Mississippi delta 密西西比河三角洲 the delta of the Nile 尼羅河三角洲 delta noun (LETTER) [ 可數(shù)名詞:有複數(shù)形式的名詞 or 不可數(shù)或單數(shù)名詞:沒有複數(shù)形式的名詞 ] language, mathematics, science (symbol Δ, δ) the fourth letter of the Greek alphabet (希臘語字母表的第四個字母) 返回 delta