奶牛用英语怎么说

The question is "How to say cow in English". The answer is "cow".

If you need more information, you can also ask:

- What are the different types of cows? (Bovine, Holstein, Hereford, Angus, Savannah)

- How do cows produce milk?

- What are some common diseases that affect cows?

- How are cows used for agriculture and other purposes?