a pair of nylons的用法和样例：
- She bought a pair of nylons.
- I bought a pair of tan leather shoes the other day.
- New Orleans is the only city in the world you go in to buy a pair of nylon stockings they want to know your head size.
- Billy has a pair of new trousers.
- This small animal has a pair of hazel eyes.
- He was dressed in a pair of black trousers.