chip and pin

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌchip and ˈpin noun [uncountable]  a system for credit cards and debit cards, in which the card has a chip containing a secret number that only the owner of the card knows. The owner has to use this number every time the card is used. The secret number makes it more difficult for people to use the card if it has been stolen 芯片密码系统〔信用卡和借记卡使用的系统，卡主每次用卡时都需输入密码〕 Most shoppers prefer chip and pin to the old system. 与老系统相比，大多数顾客都更喜欢芯片密码系统。

ˌchip and ˈpin nounChineseSyllable  

chip and pin
ˌchip and ˈpin noun [uncountable]
a system for credit cards and debit cards, in which the card has a chip containing a secret number that only the owner of the card knows. The owner has to use this number every time the card is used. The secret number makes it more difficult for people to use the card if it has been stolen:
    Most shoppers prefer chip and pin to the old system.

chip and PINBrE /ˌtʃɪp ən ˈpɪn/ 🔊NAmE /ˌtʃɪp ən ˈpɪn/ 🔊 (also chip and pin) noun [uncountable] a system of paying for sth with a credit card or debit card in which the card has information stored on it in the form of a microchip and you prove your identity by typing a number (your PIN) rather than by signing your name 芯片卡付款系统，智能卡付款系统（信用卡或借记卡上带有存储信息的微型芯片，付款时输入密码即可）◆Chip and PIN is designed to combat credit card fraud. 智能卡系统是专为防止信用卡诈骗设计的。🔊🔊