wallet 和 purse 有什么区别？如果难以说明的话，请教我一下例句。

A wallet is usually small enough to fit inside a pocket, is thin, and never has straps. Often a wallet folds in half, with your money on the inside. However, some wallets are just a pocket to slide money into. A wallet is only used to hold money, cards, or sometimes small pictures (for example a picture of your family). A purse usually has straps and resembles a bag. Sometimes it has no straps and is meant to be held in hand, but would not fit into a pocket (this can be called a "clutch"). Often you carry a wallet inside of a purse to separate your money from other things (for example, I carry a small notebook in my purse). Traditionally, a man carries a wallet and a woman carries a purse. It is not surprising to see a woman with a wallet, but is surprising if a man has a purse. If a man wants a bag, usually he gets a satchel instead. Satchels are usually larger with many pockets. They are often used by students to carry books, notebooks, etc.