Personal Identification Number (PIN) is required for a transaction.

交易时需提交个人密码(PIN)。

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A Personal Identification Number (PIN) is required for a transaction.

交易时需提交个人密码(PIN)。

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Also, systems may trigger a transaction with a bar code or a number sequence.

同样，系统可以用条形码或者序列号完成交易。

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Also, systems may trigger a transaction with a bar code or a number sequence.

同样，系统可以用条形码或者序列号完成交易。

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