The idea for this app grew out of a previous product that Square developed in 2009, which allows cell phone users to connect a credit card scanner to their headphone jacks.

2009年推出的一项产品。 通过这个产品，手机用户可以将信用卡扫描器与手机耳机接口直接相连。

youdao

He raked a plastic card across the scanner affixed to the wall.

他用一塑料卡滑过附在门上的扫描器。

youdao

All you have to do is hold the little plastic card to the windscreen as you approach the checkpoint, and a scanner reads your unique identification number.

你所要做的，只是在抵达检查站时把小塑料卡拿到玻璃橱窗前，而扫描仪会读出你唯一的身份证号码。

youdao

Anyone who's ever installed a sound card, scanner or modem knows that even at its easiest, it still requires a bit of know-how and a fair amount of time.

CNN: module

To use a bike, you simply swipe your card over a scanner, pull out a bike, adjust the seat to your comfort and go.

BBC: Cycling the Aztec way

In addition to being able to scan images onto the included SD memory card, the scanner accepts other popular memory cards (SD, MS, MS Pro, MMS, XD) and can also be connected directly to either a Mac or PC computer via its mini-USB port.

ENGADGET: Pandigital Personal Photo Scanner/Converter cuts the cable, writes to memory cards