milch
adj. 生乳的;产奶的
例句
This lark is going to turn into a milch cow.
这个小百灵鸟快要变成有奶的牛了。
They are becoming the milch cow of the family.
他们将成为家庭的财源。
It is a black milch cow, though, its milk is white.
别看它是一条黑母牛,牛奶一样是白的。