Three illustrative sentences of my own composition
暗証番号 ：PIN (personal identification number)
① Never tell anybody your four-digit PIN.
② You are required to change your six-digit PIN once or more a month.
③ It is all your fault that you wrote down your eight-digit PIN on a business card.
暗証番号 ：PIN (personal identification number)
① Never tell anybody your four-digit PIN.
② You are required to change your six-digit PIN once or more a month.
③ It is all your fault that you wrote down your eight-digit PIN on a business card.
