- (North American English also billfold)
a small, flat, folding case made of leather or plastic used for keeping paper money and credit cards in （放钞票、信用卡的）钱包，皮夹子 
He carried a photo of his children in his wallet. 他在钱包里夹着孩子们的照片。 He pulled a €50 note out of his fat wallet. 他从鼓鼓的钱包里面抽出一张 50 欧元的钞票。
Extra ExamplesTopics Moneya2, Clothes and Fashiona2a wallet containing more than £100 装有 100 多英镑的钱包 a wallet stuffed with fifty-dollar bills 塞满 50 美元钞票的钱包 a wallet containing credit cards 放了信用卡的皮夹子
Oxford Collocations Dictionaryadjective- bulging
- fat
- empty
- …
- get out
- pull out
- take out
- …
- be stuffed with something
- contain
- in a/the wallet
- (British English)
a flat case made of leather, plastic or card for carrying documents in （携带文件用的）皮夹，塑料夹，硬纸夹 a document wallet 文件夹
Word Originlate Middle English (denoting a bag for provisions): probably via Anglo-Norman French from a Germanic word related to the noun well. The current sense (originally US) dates from the mid 19th cent.