buy a dress的用法和样例：
- Mother: Yes. I want to buy a dress for my dauter.
- She bought a dress patterned upon a Parisian model.
- I bought a dress patterned upon a Paris model.
- She bought a dress pattern and some material.
- I bought a dress with golden lace trim.
- I want to look at dresses. I want to buy a dress for the office.