柯林斯詞典buttermilk /?b?t??m?lk/ 1. N-UNCOUNT Buttermilk is the liquid that remains when fat has been removed from cream when butter is being made. You can drink buttermilk or use it in cooking. 脫脂牛嬭 返回 buttermilk劍橋詞典the liquid that is left after taking the fat from cream to make butter 脫脂乳，白脫牛嬭 返回 buttermilk