Right now the service only works with certain Citi MasterCards and the Google Prepaid Card and on the Sprint Nexus s 4g phone.

目前这项服务只支持某些类型的“Citi”万事达信用卡和谷歌预付费卡，手机则仅限于斯普林特(Sprint)的Nexus s 4g手机。

youdao

Citi MasterCard is currently the only credit card that can be directly added to Google Wallet, but the Google Prepaid card can be loaded with other credit CARDS.

花旗银行万事达卡(Citi MasterCard)是目前唯一可直接通过谷歌钱包使用的信用卡，但谷歌预付卡能支持其他信用卡。

youdao

Additionally, the only cards you can link to Google Wallet are the Citi MasterCard and Google Prepaid Card.

FORBES: VeriFone Lends Google Wallet A Helping Hand

Or, they can fund the Google Prepaid card with any payment card.

ENGADGET: Google Wallet mobile payment service, Google Offers announced

At commercial launch, Google Wallet will support payments with two payment solutions: a PayPass eligible Citi MasterCard and a virtual Google Prepaid card.

ENGADGET: Google Wallet mobile payment service, Google Offers announced