buttermilk

详细解释:n. 脱脂乳, 酪乳
【医】 酪乳

英语解释：

名词 buttermilk:

residue from making butter from sour raw milk; or pasteurized milk curdled by adding a culture

详细解释：

but.ter.milk

n.（名词）
The sour liquid that remains after the butterfat has been removed from whole milk or cream by churning.
酪乳：将乳脂从牛奶或一次提制的奶油中除去之后剩下的酸味液体
A cultured sour milk made by adding certain microorganisms to sweet milk.
酸奶：在甜牛奶中加入某种微生物制得的发酵的酸味牛奶