used to refer to cows that are used for producing milk, rather than meat, or to foods that are made from milk, such as cream, butter, and cheese

dairy cattle 奶牛

dairy farmers 乳品场工人

dairy products 奶制品

a place on a farm where milk and cream are kept and cheese and butter are made, or a company that supplies milk and products made from milk

foods that are made from milk, such as cream, butter, and cheese

I was advised not to eat too much dairy. 我被告知不要吃太多奶制品。