Many hotels are trying to increase security by using a key card system.
许多酒店试图通过使用钥匙卡系统提高客房安全。
This is our electronic punch card system.
这是我们的电子刷卡系统。
That is because the payment-card system is a "two-sided" market.
这是因为支付卡系统是一个“双边”的市场。
A national electronic-money system would operate as a debit-card system.
一个全国性的电子货币系统如同结算卡系统那样运行。
A national electronic-money system would operate as a debit-card system.
一个全国性的电子货币系统如同结算卡系统那样运行。
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