Mobile wallets face several hurdles in their transition to the mainstream, including a lack of standardized technology, fears about data security, and established physical payment systems.

移动钱包在向主流转型的过程中面临着一些障碍，包括缺乏标准化技术，对数据安全的担忧，以及已经形成多年的现有实体支付系统。

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When it comes to physical delivery, the method of payment is irrelevant.

当涉及到实物交割的时候，支付方式则是不相关的。

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The influencing factors include: physical exercise before they got breast cancer, present marriage status, present job, the way of payment for treatment cost, economical condition, and so on.

患癌前体育锻炼，目前的婚姻状况、工作情况，医疗费用支付方式，经济因素等为患者术后生命质量的影响因素。

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However, smartphone manufacturers will be hoping that enhanced credit cards will be quickly replaced by NFC - near-field communication - alleviating the need for physical payment cards altogether.

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The international trading partners of U.S. demanded payment in physical gold instead of dollars.

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That is just a silly statement because cryptocurrency donations are far more efficient than dealing with payment processors and physical in-kind donations.

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