簡單對話:(食物篇) 16. Sour Cream

A: What's the white stuff on your food?

B: It's sour cream. Want to try some?

A: I don't think so! It sounds gross.

B: It's not really sour.

A: Why is it called sour cream, then?

B: I think it's because they let the milk go sour to make it.

A: You're eating sour milk? Yuk!

B: Cheese is made in a similar way.

A: I thought cheese was made with bacteria.

B: Of course! Bacteria cause milk to go sour.

A: Dairy products are so strange.

B: Even so, I think they're delicious!

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