基于校园卡的网上支付平台的研究和应用 关键词：校园一卡通；电子支付；自助缴费；无卡交易 [gap=960]Key words：school campus card；electronic payment；self-pa；transaction without card
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transaction without card
无卡交易
以上为机器翻译结果，长、整句建议使用 人工翻译 。
He thought the amount reserved by hotels was excessive and he was also concerned that the transaction took place without the card-holder knowing.
BBC: NEWS | Programmes | Moneybox | Warning for credit card customers
The trick is finding a card without foreign transaction fees, which typically charges a fee of two to three percent of each transaction.
FORBES: The New Way to Travel Cheap
As in Europe, where no transaction can happen without a PIN code and a smart (chip) card.
FORBES: An European In New York - A Story Of Convenience Versus Security
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