This milk-based ice cream is very popular because of its exceptionally smooth texture.

milk-based 是由名词 milk（牛奶）和形容词 based（以...为基础的）组成的复合形容词，表示"以牛奶为主要成分的"。 milk-based ice cream 指以牛奶为主要原料制作的冰淇淋，区别于其他基底（如水基或豆奶基）的冰淇淋。